Cake & Ice Cream: Week of March 26, 2012

Gaga turns 26, Hammer is 50 and more celeb b-days.

Juvenile: March 25 - The former Hot Boy is full grown at 37.(Photo: Brad Barket/PictureGroup)

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Juvenile: March 25 - The former Hot Boy is full grown at 37.(Photo: Brad Barket/PictureGroup)

Jay Sean: March 26 - The British bad boy rapper turns 31.(Photo: Fernando Leon/PictureGroup)

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Jay Sean: March 26 - The British bad boy rapper turns 31.(Photo: Fernando Leon/PictureGroup)

Photo By Photo: Fernando Leon/PictureGroup

Mariah Carey: March 27 - The R&B diva is looking better than ever at 42.(Photo: Stuart Wilson/Getty Images)

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Mariah Carey: March 27 - The R&B diva is looking better than ever at 42.(Photo: Stuart Wilson/Getty Images)

Fergie: March 27 - The sexiest Black Eyed Pea celebrates her 37th birthday.(Photo: Andrew H. Walker/Getty Images)

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Fergie: March 27 - The sexiest Black Eyed Pea celebrates her 37th birthday.(Photo: Andrew H. Walker/Getty Images)

Lady Gaga: March 28 - Mother Monster celebrates her 26th birthday.   (Photo credit: Fafotos/Elevation/PictureGroup)

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Lady Gaga: March 28 - Mother Monster celebrates her 26th birthday. (Photo credit: Fafotos/Elevation/PictureGroup)

Photo By Fafotos/Elevation/PictureGroup

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MC Hammer: March 30 - Believe it or not, the man who made parachute pants cool is 50!(Photo credit: Lucas Dawson/Getty Images)

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MC Hammer: March 30 - Believe it or not, the man who made parachute pants cool is 50!(Photo credit: Lucas Dawson/Getty Images)

Photo By Photo credit: Lucas Dawson/Getty Images

Norah Jones: March 30 - The sultry songbird turns 33.   (Photo credit: Darren Hauck/Getty Images)

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Norah Jones: March 30 - The sultry songbird turns 33. (Photo credit: Darren Hauck/Getty Images)

Photo By Photo credit: Darren Hauck/Getty Images

Tracy Chapman: March 30 - The "Give Me One Reason" singer celebrates her 48th birthday.   (Photo credit: John Spellman/Retna Ltd.)

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Tracy Chapman: March 30 - The "Give Me One Reason" singer celebrates her 48th birthday. (Photo credit: John Spellman/Retna Ltd.)

Photo By Photo credit: John Spellman/Retna Ltd.

Celine Dion: March 30 - The Canadian hitmaker and mother of two turns 44.   (Photo credit: Kevork Djansezian/Getty Images)

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Celine Dion: March 30 - The Canadian hitmaker and mother of two turns 44. (Photo credit: Kevork Djansezian/Getty Images)

Photo By Photo credit: Kevork Djansezian/Getty Images

Al Gore: March 31 - The former vice president and global warming activist turns 64.   (Photo credit: Frazer Harrison/Getty Images)

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Al Gore: March 31 - The former vice president and global warming activist turns 64. (Photo credit: Frazer Harrison/Getty Images)

Photo By Photo credit: Frazer Harrison/Getty Images

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Susan Boyle: April 1 - The British TV sensation is still smiling at 51.   (Photo credit: Dave J Hogan/Getty Images)

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Susan Boyle: April 1 - The British TV sensation is still smiling at 51. (Photo credit: Dave J Hogan/Getty Images)

Photo By Photo: Dave J Hogan/Getty Images

Rachel Maddow: April 1 - The MSNBC political anchor celebrates her 39th birthday.   (Photo credit: Boston Globe/John Tlumacki/Landov)

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Rachel Maddow: April 1 - The MSNBC political anchor celebrates her 39th birthday. (Photo credit: Boston Globe/John Tlumacki/Landov)