PHOTOS OF THE WEEK
POTW: Lady Gaga, President Obama, Ke$ha, Bret Michaels, Beyonce, Mandy Moore
April 16: Lady Gaga poses with the Evil Queen from Disney's 'Snow White' in Florida.
Katy Perry and Kanye West join forces to perform "E.T." for Thursday's (April 21) taping of 'American Idol.'
Mike Posner serenades Ellen DeGeneres with his hit, "Bow Chicka Wow Wow" on 'The Ellen DeGeneres Show' on April 19.
Ke$ha gets cuddly with the White Rabbit from Disney's animated film 'Alice in Wonderland' at the Magic Kingdom theme park on April 21 in Lake Buena Vista, FL.
Seal clicks a pic of his son Henry Samuel at the Hornets v. Lakers game at the Staples Center on April 17 in Los Angeles, CA.
Susan Boyle gets close with her new wax figure at the official launch of the new Madame Tussauds venue in Blackpool on April 19 in Blackpool, England.
The legendary Whoopi Goldberg and Patti LaBelle share a moment at the after party for the opening night of the musical/comedy 'Sister Act' on Broadway on April 20 in NYC.
Mandy Moore shows the animal lover in her at the Animal Healthcare Awareness Program launch at the ASPCA headquarters on April 20 in NYC.
The Jonas brothers (Kevin Jonas, Frankie Jonas and Nick Jonas) throw up the thumbs during the 35th Annual Toyota Pro/Celebrity Race on April 16 in Long Beach, CA.
Bret Michaels cheers with fans at the Back to the Eighties with Rubix Kube show at Canal Room on April 16 in NYC.
Ziggy Marley celebrates 4/20 with the release of his comic book, 'Marijuana Man,' at Golden Apple Comics on April 20 in Los Angeles.
April 20: Christina Aguilera poses with drag queens at The Abbey's Gay Walk of Fame.
Tony Bennett and James Taylor hit the stage during the James Taylor's Perspectives Series at Carnegie Hall on April 20 in NYC.
Russell Brand plants wet ones on Helen Mirren and wife, Katy Perry at the European premiere of 'Arthur' at Cineworld 02 Arena on April 19 in London, England.
will.i.am and Tim Leiweke comfort Kobe Bryant after suffering a neck injury at the Hornets v. Lakers game at the Staples Center on April 17 in Los Angeles, CA.
Chicago Mayor-Elect Rahm Emanuel and Common shake on it at the 2011 Common Ground Foundation gala fundraiser at the International Hotel on April 16 in Chi-Town.
Jason Mraz and Jaime Foxx join President Obama at his Victory Fund 2010 Kick-Off at Sony Pictures Studios on April 21 in Culver City, CA.
Taylor Momsen, Sebastion Bach, Alice Cooper and Alice Cooper's stage snake make their presence felt at the 3rd Annual Revolver Golden God Awards at Club Nokia on April 20 in Los Angeles, CA.
Beyonce spends quality time with family. Celebrating her wedding anniversary with hubby, Jay-Z (April 20) and riding roller coasters with nephew, Daniel (Juelz), in Disneyland Paris (April 21).