Disco de Beyoncé - I Am... Sasha Fierce

I Am... Sasha Fierce trata del tercer álbum de estudio de la cantante estadounidense Beyoncé . Su lanzamiento fue el 12 de noviembre de 2008, por Columbia Records y Music World Entertainment . 

Ya en el lanzamiento original, el disco fue formateado como un álbum doble. Todo esto con la intención de comercializar, la personalidad artística dicotómica de Beyoncé. 

Así que este primer disco I Am... contiene baladas de R&B y pop lento y midtempo , mientras que el segundo, Sasha Fierce (llamado así por el alter ego de Beyoncé en el escenario), se centra en ritmos más uptempo que combinan electropop y Elementos europop . 

Otro dato a señalar es que al componer las letras de las canciones, Beyoncé trabajó con escritores, con cada sesión acompañada de orquestación en vivo.

También Beyoncé le dio crédito tanto a su esposo, el rapero Jay-Z , como a la cantante de jazz Etta James, por inspirarla a superar los límites de su composición y arte. 

Lo interesante es que musicalmente, I Am... se inspiró en el folk y el rock alternativo , mientras combinaba elementos de guitarra acústica con baladas contemporáneas. 

Todas sus pistas fueron escritas y producidas por Beyoncé, durante los esfuerzos de colaboración con Babyface , Tricky Stewart , The-Dream y Ryan Tedder . Sasha Fierce contó con la producción de Darkchild y Sean Garrett .

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Lista de las canciones del disco I Am... Sasha Fierce

I Am...

Disc one: I Am... — Standard edition

No.	Title	Writer(s)	Producer(s)	Length
1.	"If I Were a Boy"	Tobias Gad Brittany Carlson	Toby Gad Beyoncé Knowles	4:09
2.	"Halo"	B. Knowles Ryan Tedder Evan Bogart	Tedder B. Knowles	4:21
3.	"Disappear"	Amanda Gosein Hugo Chakrabongse Dave McCracken Ian Dench B. Knowles	Amanda Ghost McCracken Dench B. Knowles	4:27
4.	"Broken-Hearted Girl"	Kenneth Edmonds Mikkel Eriksen Tor Erik Hermansen B. Knowles	Stargate B. Knowles	4:37
5.	"Ave Maria"	B. Knowles Gosein Dench Makeba Riddick Eriksen Hermansen	Stargate B. Knowles	3:42
6.	"Satellites"	Gosein McCracken Dench B. Knowles	Ghost McCracken Dench B. Knowles	3:06
Total length:				24:22

Disc one: I Am... — Spanish and Latin American standard edition (bonus track)^[147]

No.	Title	Writer(s)	Producer(s)	Length
7.	"Si Yo Fuera un Chico"	Gad Jean Rudy Pérez	Gad B. Knowles	4:09
Total length:				28:31

Disc one: I Am... — Deluxe edition^[148]

No.	Title	Writer(s)	Producer(s)	Length
6.	"Smash Into You"	Christopher Stewart Terius Nash B. Knowles	Tricky Stewart The-Dream B. Knowles	4:31
7.	"Satellites"	Gosein McCracken Dench B. Knowles	Ghost McCracken Dench B. Knowles	3:06
8.	"That's Why You're Beautiful"	Andrew Hey James Fauntleroy II B. Knowles	Hey B. Knowles	3:41
Total length:				32:24

Disc one: I Am... — Japanese deluxe edition (bonus track)^[149]

No.	Title	Writer(s)	Producer(s)	Length
9.	"Save the Hero"	B. Knowles James Scheffer Richard Butler Jr. Alexandra Tamposi	Jim Jonsin Rico Love B. Knowles	4:33
Total length:				36:57

Disc one: I Am... — iTunes Store deluxe edition (bonus tracks)^[150]

No.	Title	Writer(s)	Director(s)	Length
10.	"If I Were a Boy" (music video)	Gad Jean	Jake Nava	5:04
Total length:				42:01

Sasha Fierce

Disc two: Sasha Fierce — Standard edition

No.	Title	Writer(s)	Producer(s)	Length
1.	"Single Ladies (Put a Ring on It)"	Stewart Nash Thaddis Harrell B. Knowles	Stewart The-Dream B. Knowles	3:13
2.	"Radio"	Scheffer Butler Dwayne Nesmith B. Knowles	Jonsin D-Town Love B. Knowles	3:38
3.	"Diva"	B. Knowles Shondrae Crawford Sean Garrett	Bangladesh Garrett B. Knowles	3:20
4.	"Sweet Dreams"	B. Knowles Scheffer Wayne Wilkins Butler	Jonsin Wilkins Love B. Knowles	3:28
5.	"Video Phone"	B. Knowles Crawford Garrett Angela Beyincé	Bangladesh Garrett B. Knowles	3:35
Total length:				17:14

Disc two: Sasha Fierce — Deluxe edition^[148]

No.	Title	Writer(s)	Producer(s)	Length
6.	"Hello"	B. Knowles Ramon Owen David Quiñones Bogart	REO B. Knowles	4:16
7.	"Ego"	Elvis Williams Harold Lilly B. Knowles	Blac Elvis Lilly B. Knowles	3:56
8.	"Scared of Lonely"	Rodney Jerkins LaShawn Daniels Crystal Johnson Butler Solange Knowles B. Knowles	Darkchild B. Knowles	3:42
Total length:				29:08

Disc two: Sasha Fierce — Japanese deluxe edition (bonus track)^[149]

No.	Title	Writer(s)	Producer(s)	Length
9.	"Why Don't You Love Me"	S. Knowles B. Knowles Eddie Smith III Jesse Rankins Jonathan Wells Beyince	Bama Boyz B. Knowles	3:37
Total length:				32:45

Disc two: Sasha Fierce — iTunes Store deluxe edition (bonus tracks)^[150]

No.	Title	Writer(s)	Director(s)	Length
10.	"Single Ladies (Put a Ring on It)" (music video)	Stewart Nash Harrell B. Knowles	Nava	3:18
Total length:				36:03

I Am... Sasha Fierce

I Am... Sasha Fierce — Deluxe reissue editio

No.	Title	Writer(s)	Producer(s)	Length
1.	"If I Were a Boy"	Gad Jean	Gad B. Knowles	4:10
2.	"Halo"	Tedder Bogart B. Knowles	Tedder B. Knowles	4:22
3.	"Disappear"	Gosein Chakrabongse McCracken Dench B. Knowles	Ghost McCracken Dench B. Knowles	4:29
4.	"Broken-Hearted Girl"	Edmonds Eriksen Hermansen B. Knowles	Stargate B. Knowles	4:39
5.	"Ave Maria"	B. Knowles Gosein Dench Riddick Eriksen Hermansen	Stargate B. Knowles	3:42
6.	"Smash into You"	Stewart Nash B. Knowles	Stewart The-Dream B. Knowles	4:31
7.	"Satellites"	Gosein McCracken Dench B. Knowles	Ghost McCracken Dench B. Knowles	3:07
8.	"That's Why You're Beautiful"	Hey Fauntleroy B. Knowles	Hey B. Knowles	3:41
9.	"Single Ladies (Put a Ring on It)"	Stewart Nash Harrell B. Knowles	Stewart The-Dream B. Knowles	3:13
10.	"Radio"	Scheffer Butler Nesmith B. Knowles	Jonsin D-Town Love B. Knowles	3:38
11.	"Diva"	B. Knowles Crawford Garrett	Bangladesh Garrett B. Knowles	3:21
12.	"Sweet Dreams"	B. Knowles Scheffer Wilkins Butler	Jonsin Wilkins Love B. Knowles	3:28
13.	"Video Phone"	B. Knowles Crawford Garrett Beyince	Bangladesh Garrett B. Knowles	3:35
14.	"Hello"	B. Knowles Owen Quiñones Bogart	Owen B. Knowles	4:16
15.	"Ego"	Williams Lilly B. Knowles	Blac Elvis Lilly B. Knowles	3:56
16.	"Scared of Lonely"	Darkchild Daniels Cristyle Butler S. Knowles B. Knowles	Darkchild B. Knowles	3:42
17.	"Poison"	B. Knowles Eriksen Hermansen Johntá Austin	Stargate B. Knowles	4:02
18.	"Video Phone" (Extended Remix) (featuring Lady Gaga)	B. Knowles Crawford Garrett Beyince Stefani Germanotta	Bangladesh Garrett B. Knowles	5:04
Total length:				68:14

I Am... Sasha Fierce — Platinum edition (CD)^[152]

No.	Title	Writer(s)	Producer(s)	Length
1.	"Single Ladies (Put a Ring on It)"	Stewart Nash Harrell B. Knowles	Stewart The-Dream B. Knowles	3:12
2.	"Diva"	B. Knowles Crawford Garrett	Bangladesh Garrett B. Knowles	3:21
3.	"Ego"	Williams Lilly B. Knowles		3:56
4.	"Halo"	B. Knowles Tedder Bogart	Tedder B. Knowles	4:21
5.	"If I Were a Boy"	Gad Jean	Gad B. Knowles	4:10
6.	"Smash into You"	Stewart Nash B. Knowles	Stewart The-Dream B. Knowles	4:31
7.	"Sweet Dreams"	B. Knowles Scheffer Wilkins Butler	Jonsin Wilkins Love B. Knowles	3:28
8.	"Broken-Hearted Girl"	Edmonds Eriksen Hermansen B. Knowles	Stargate B. Knowles	4:39
9.	"Scared of Lonely"	Jerkins Daniels Johnson Butler S. Knowles B. Knowles	Darkchild B. Knowles	3:42
10.	"That's Why You're Beautiful"	Hey Fauntleroy B. Knowles	Hey B. Knowles	3:41
11.	"Hello"	B. Knowles Owen Quiñones Bogart	Owen B. Knowles	4:16
12.	"Radio"	Scheffer Butler Nesmith B. Knowles	Jonsin D-Town Love B. Knowles	3:38
13.	"Video Phone"	B. Knowles Crawford Garrett Beyince	Bangladesh Garrett B. Knowles	3:35
14.	"Ego" (Remix featuring Kanye West)	Williams Lilly B. Knowles West	Blac Elvis Lilly B. Knowles	4:44
15.	"Why Don't You Love Me"	S. Knowles B. Knowles Smith Rankins Wells Beyince	Bama Boyz B. Knowles	3:37
16.	"Honesty"	Billy Joel	Scott Storch	3:47
17.	"Save the Hero"	B. Knowles Tamposi Butler Scheffer	B. Knowles Jonsin Love	4:34
18.	"Satellites"	Gosein McCracken Dench B. Knowles	Ghost McCracken Dench B. Knowles	3:07
19.	"Disappear"	Gosein Chakrabongse McCracken Dench B. Knowles	Ghost McCracken Dench B. Knowles	4:28
20.	"Ave Maria"	B. Knowles Gosein Dench Riddick Eriksen Hermansen	Stargate B. Knowles	3:42
Total length:				74:29

I Am... Sasha Fierce — Platinum edition (DVD)^[152]

No.	Title	Director(s)	Length
1.	"If I Were a Boy"	Nava	5:05
2.	"Single Ladies (Put a Ring on It)"	Nava	3:19
3.	"Diva"	Melina Matsoukas	4:05
4.	"Halo"	Philip Andelman	3:45
5.	"Broken-Hearted Girl"	Sophie Muller	4:40
6.	"Ego" (Remix featuring Kanye West)	B. Knowles Frank Gatson, Jr.	4:53
7.	"Ego" (Fan exclusive)	B. Knowles Gatson, Jr.	3:58
8.	"Sweet Dreams"	Adria Petty	4:01
9.	"Behind the Scenes"	Ed Burke	19:01
Total length:			52:26

I Am... Sasha Fierce — The Bonus Tracks EP^[62]

No.	Title	Writer(s)	Producer(s)	Length
1.	"Video Phone" (Extended Remix) (featuring Lady Gaga)	B. Knowles Crawford Garrett Germanotta	Bangladesh Garrett B. Knowles	5:04
2.	"Why Don't You Love Me"	S. Knowles B. Knowles Smith Rankins Wells Beyince	Bama Boyz B. Knowles	3:37
3.	"Poison"	B. Knowles Austin Eriksen Hermansen	Stargate B. Knowles	4:02
Total length:				12:43