Lady Gaga enjoyed 'Marilyn moment' at Clinton concert

Lady Gaga channelled Marilyn Monroe as she serenaded former President Bill Clinton during his birthday concert, revealing she enjoyed her "first real Marilyn moment".

The pop superstar took to the stage at Los Angeles' Hollywood Bowl on Saturday night (15Oct11) at a gig to mark Clinton's belated 65th birthday and the 10th anniversary of his Clinton Foundation.

Gaga wore her hair in blonde curls and sported red lipstick in honour of the late screen icon to wish the former politician a happy birthday, before serenading him in a moment reminiscent of the night Monroe sang to President John F. Kennedy in 1962.

The singer changed the words of her hit track Bad Romance to Bill Romance in honour of the former president, and said she experienced her "first real Marilyn moment", adding, "I always wanted to have one, and I was hoping that it didn't involve pills and a strand of pearls."

Clinton joked to the crowd, "How cool is it to be 65 and you get Lady Gaga, come on?... And then I wondered... she said she was going to have a Marilyn moment, I thought, 'By God I get Lady Gaga and I will have a heart attack celebrating my 65th birthday'."

Other performers at the show included Kenny Chesney, Usher and Stevie Wonder.