EXCLUSIVE: Katy Perry and a Shirtless Orlando Bloom Hold Hands in Hawaii -- See the Pics

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Looks like Katy Perry and Orlando Bloom are indeed more than friends.

The 31-year-old "Teenage Dream" singer and the handsome 39-year-old British actor were snapped holding hands and hiking in Hawaii on the north shore of Kauai on Saturday, with Bloom showing off his super toned physique by going shirtless. The Lord of the Rings actor presumably joined Perry in Hawaii, where she was in town to play a private show at the Grand Wailea Resort in Maui on Feb. 24.

"They looked very loved up and really into each other," a source tells ET about Bloom and Perry. "They were comfortable letting everyone see them as a couple -- lots of PDA and hand-holding."

WATCH: Katy Perry, Orlando Bloom and John Mayer Attend Adele's Intimate Pre-GRAMMYs Concert -- But Did They Cross Paths?

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The couple stayed at a private house and spent several days together doing different activities, including going on a hike on the Na Pali Coast, dining at Bar Acuda restaurant in Hanalei, and going on a helicopter ride, the source says.

"It seemed very romantic and they both smiled a lot, and looked to really enjoy each other's company," the source noted.

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This is the first time Perry and Bloom have been snapped openly engaging in PDA. Relationship rumors about the two started swirling in January, after they looked pretty affectionate with one another at The Weinstein Company and Netflix Golden Globes after party. Later that month, the pair enjoyed a night of theater in Los Angeles at the one-man show, The Absolute Brightness of Leonard Palkey, further fueling the dating rumors.

More dates between the two in February included a Feb. 3 birthday dinner for Bloom's manager, Aleen Keshishian, and Adele's intimate pre-GRAMMYs concert on Feb. 12. Perry's ex, John Mayer, also attended the Adele concert, accompanied by a mystery brunette. However, the exes didn't cross paths, a source told ET.

The next day, Bloom supported Perry at her own star-studded pre-GRAMMYS party presented by Spotify at Cicada restaurant in Los Angeles, where the two rubbed elbows with Ariana Grande, Beck, Fergie, and more.

Both Perry and Bloom are certainly no strangers to high-profile relationships. Perry was married to comedian Russell Brand from 2010 to 2012, and has been in an on-again, off-again relationship with John Mayer for several years. As for Bloom, he was married to supermodel Miranda Kerr from 2010 to 2013, and the two have a 5-year-old son together, Flynn.

WATCH: Russell Brand Slams Ex-Wife Katy Perry's 'Vapid' Lifestyle in New Doc

ET chatted with comedian Jason Bateman earlier this month -- who was pictured with Perry and Bloom at the Feb. 3 birthday dinner for Bloom's manager -- at the Zootopia premiere, where he gave us a little insight into the couple's dynamic.

"They are fun," Bateman said.

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