Sun's Out Buns Out! Katy Perry Stuns In Sexy Swimsuit On Set Of New Music Video

Katy Perry showed off some early fireworks as she filmed her new music video in Hawaii, and RadarOnline.com has all the sexy snaps of the singer revealing her booty and beach body!

The 34-year-old sunned in the sand and then played in the water while cameras rolled. She was flanked by friends on either side. But where was new BFF Taylor Swift?

As RadarOnline.com readers now know, the years of bad blood between Katy and Taylor seem to be in the past now, with Katy making a surprise appearance in Taylor’s new video, “You Need To Calm Down,” and Taylor seemingly being invited to Katy’s upcoming wedding to Orlando Bloom.

The two are so close now, there’s even talk of a possible duet.

“A collaboration between the two is already in the works and has been since they reunited,” an insider told RadarOnline.com. “They are so much alike and they know how lucrative their friendship can be.”

But for now, Katy is still singing solo. Check out this RadarOnline.com gallery for all the hot pics of the “Roar” singer filming in the Hawaiian sun.

As RadarOnline.com reported, Orlando, 42, popped the question on Valentine’s Day this year.

The next day Perry shared a sweet snap of herself cuddling up to her man while wearing a gorgeous white and red diamond ring.

But the two have been bickering lately about their magical day, a source recently claimed to RadarOnline.com.

“Katy wants this gigantic, elaborate wedding and wants it to be a huge production,” a friend of Katy’ told RadarOnline.com exclusively. “She wants to have a massive guest list and a reception at a super fancy and expensive venue.”