Amidst tabloid rumors and speculation that Justin Timberlake and Cameron Diaz are ready to tie the knot, Timberlake set the record straight with Ellen DeGeneres on her talk show Monday.

They might get married — in a decade and a half, the singer told DeGeneres when she brought up the rumors.

Friendly bantering ensued as DeGeneres asked whether she would need to reserve a bridesmaid dress. Timberlake’s response?

“You’ll have to stay the same size for the next 15 years.”

The crowd was visibly disappointed, but life goes on. In addition to marriage rumors, Timberlake also discussed his former bandmate Lance Bass, who recently made it publicly known he was gay.

“Let’s all be honest,” Timberlake says, “I don’t think we didn’t know. I’m more happy for him than I’ve ever been… he gets to live his life the way he wants to live his life.”

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