Selena Gomez's Kiss Cam smooch with Justin Bieber was ''the most humiliating thing that's ever happened'' to her.

The actress and her boyfriend were watching the Los Angeles Lakers play basketball on Monday night (April 16) when they appeared on the court's Kiss Cam—which zooms in on couples to make them lock lips—and although they complied, Selena was enormously embarrassed.

She told host Ryan Seacrest on his KIIS FM radio show: ''It's the most humiliating thing that's ever happened to me, probably.

''They were showing these little elderly couples, and it was so cute. Then all of a sudden we're both looking up and we come on the screen and it's like... It was so awkward.

''It was so weird. I mean you have to kiss, right?''

Selena, 19, also talked about "Boyfriend" singer Justin's new track which he wrote with Taylor Swift.

She explained: ''They wrote a song together and it's beautiful—it's amazing—I don't know if it will make the album, but if not, I'm sure they'll release it at some point, because it's a really great record.

''It's Taylor and Justin combined. So it's a little bit of an upbeat song, but it's very acoustic.''

Justin's third album Believe will be released in June.