Another performance, another headline; Lady Gaga stole the show at former Bill Clinton's 65th birthday as she took the guise of Marilyn Monroe, sang an unplugged version of Born this Way and made a pass at the former President and his wife.

I just love you and your hot wife, she said emerging from a white tree on the stage of the Hollywood Bowl. With her long blond hair complemented with a beauty spot on her cheek, Gaga performed under the persona of Monroe, wearing a flesh colored cape, top and leggings with a large mesh hat.

Gaga's sedated acoustic performance did not last very long; however, at the first opportunity the backing tracks kicked in followed by back up dancers, and soon the former president and his wife were clapping along to what became a fully charged Gaga performance.

The concert dubbed A Decade of Difference, celebrated 10-years of the Clinton Global Initiative (CGI), while also a celebration of Clinton's 65th birthday. Gaga may not have rendered her own quirky version of Happy Birthday Mr. President but she changed some of the lyrics turning Bad Romance to Bill romance, and prompting the president to later declare, I thought, 'My God, I get Lady Gaga, and I will have a heart attack celebrating my 65th birthday, MTV reported.

Gaga told the audience that she was having her first Marilyn moment. I always wanted to have one, and I was hoping that it didn't involve an accident with some pills and a strand of pearls, so here we are, she said running her fingers through her long blonde locks.

Lady Gaga is renowned for her weird and wonderful outfits, from Kermit the Frog to dressing as an egg she never ceases to surprise her audience. Her most recent memorable guise was that of her male alter ego at the MTV 2011 Video Music Awards. She came on stage dress in a dirty white T-shirt, black pants, and boots, introducing herself as Jo Calderone. But for Clinton she was back to being a lady.

I am the only person in history who got to be President and then had a post-presidential birthday party attended by both Lady Gaga and the Secretary of State, Clinton said to the crowd.

Stevie Wonder, Kenny Chesney, the Somali singer K'Naan, Colombian rocker Juanes, Usher and U2's Bono also performed in the four-hour fundraiser.Wonder opened the night in a soul-funk performance of Superstition and later Signed, Sealed, Delivered (I'm yours.)

Bono, who performed acoustic performances of Desire, I Still Haven't Found What I'm Looking For, Sunday Bloody Sunday, and One, praised Clinton for his work to bring peace in Ireland. He told the audience that the gig was top of his list as the former president, who he dubbed as the most beloved president since JFK for us Irish, had brought peace to Ireland in both the north and the south.

User also made headlines at the event after his pants spilt while he was dancing during his performance of a , With a Little Help From My Friends, cover. He also performed his own Yeah! and OMG.

The main purpose of the concert was a fundraiser for the mission of the Clinton Global Initiative (CGI) that aims to inspire, connect, and empower a community of global leaders to forge solutions to the world's most pressing challenges.