Meghan Trainor had a "drunk makeout" with Charlie Puth.

Meghan Trainor

Meghan Trainor

The 22-year-old singer famously locked lips with her 24-year-old pal during their performance on 'Marvin Gaye' at the American Music Awards (AMAs) last November, and she has now admitted that wasn't the first time they had shared a kiss, though is adamant it won't be happening again.

In an interview with Seventeen magazine, Meghan said: "Probably one drunk makeout. I don't know if he's going to be mad I said that! We were next to each other, recording a duet, and then I think I kissed him. It was cool. And then we never did it again. Ever. When we'd hang out, it would be like buddies."

The 'All About That Bass' hitmaker also admitted she regularly has guys wanting to grope her butt because of her famous song.

She said: "A lot of people want to grab my butt 'cause they're like, 'Oh, the bass'. They ask, and I'm like 'Yeah, no thanks."

However, despite the unwanted touching, Meghan insists she doesn't get much attention from guys wanting a date now she's famous.

She added: "I'm single. It's hard because when I wasn't famous, I got attention. Guys flirted with me all the time. And then I got famous, and guys won't look at me!

"And if they do, they're terrified. There was a part where I was just like, 'Yo, am I hideous? How am I not getting hit on? I'm super-cool. I'm super-pretty. I've never dressed better. I should be getting guys lined up!' "