Justin Bieber, Miley Cyrus caught flirting?

Singers Justin Bieber and Miley Cyrus were reportedly spotted flirting at a party here.

Sources told tmz.com that Miley arrived first and Bieber showed up around 1.50 a.m. Sunday. They hung out for approximately 15 minutes and left together.

The pop stars have been friends for long. Bieber has reportedly split from on-and-off girlfriend Selena Gomez, while Cyrus is engaged to actor Liam Hemsworth.