On Saturday night Bono, Kenny Chesney, Stevie Wonder, Usher and Lady Gaga performed at a concert celebrating 10 years of Bill Clinton's foundation. You have one chance to guess which one flipped the bird and referenced one of the most famous presidential mistress moments.

Of course, it was Gaga who declared she was having 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." While dancing in front of Bill, Hillary, and Chelsea Clinton to "Bad Romance," which she renamed "Bill Romance," Gaga told the former president, "I love you and your hot wife."

After promising that she wasn't getting naked, Gaga belted out an altered version of "You and I" with lines like, "So Hillary ... or Bill .... sit back down where you belong, in the Oval Office with those high heels on," and, "Somewhere, something about this place, somewhere about [sic] American eyes when a Clinton makes us all feel safe. Somewhere something about a cool, Arkansas guy, yes, something about-Hilary, Billary, that's your new celebrity name-to the Clintons, you and I."

Gaga said if someone told her years ago that she'd be performing for the Clintons she would have told them to fuck off. Yet, if we'd been asked to predict which president would be serenaded by a hot 25-year-old pop star a decade after leaving office, we would have definitely gone with Bill.

Gaga Channels Marilyn Monroe At Clinton's Concert [AP]
Lady Gaga Performs For Bill Clinton And His 'Hot' Wife [BlackbookMag]