Just a week after her reported split from Orlando Bloom, Dark Horse singer Katy Perry was spotted grinning from ear to ear as she left the airport in Sydney, Australia

Katy Perry had an emotional moment on stage at her final Lifetimes Tour show in Australia, which comes just days after news broke that she and partner Orlando Bloom had split after nine years together.

Katy Perry and Orlando Bloom are in the middle of a a very public split—even though the stars have yet to confirm the news. And, as with any celebrity breakup, there's been plenty of speculation as to what might have caused the couple to call it quits.