They've continued to deny rumors they're dating following their respective divorces, but Blake Shelton and Gwen Stefani may have seriously reignited the speculation about their relationship after they left a Halloween party together.

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The two Voice coaches-who announced splits from spouses Miranda Lambert and Gavin Rossdale weeks apart over the summer-were both in attendance at George Clooney's Casamigos Halloween Party Friday night when they met up. And though they arrived at the bash separately an reportedly didn't show any signs of PDA, they did surface again at a second party later in the night-and were holding hands.

Stefani reportedly met up with Shelton at Jared Leto's party later that night, and the two weren't there long before they were photographed leaving together, hand-in-hand, something that quickly changed when they spotted a photographer. However, the two did still leave in the same hired car.

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The fact that the two left the party together is once again spurring talk of a romance between them, something that has been denied countless times since they reunited on the set of their hit show following their divorce announcements.

Sources claimed earlier in October that the two were flirting up a storm on the set.

"Blake and Gwen flirt like crazy! They had a great rapport right away but it didn't really cross over into flirting until they both split from their spouses," sources said at the time. "Now, it's full throttle. They have all these inside jokes and we tease Gwen because she laughs waaay too hard at Bake's jokes. She has this little giggle that she does and it's so cute. Blake loves to come up behind her, cover her eyes with his hands and do an Adam Levine impression or something. It just cracks her up."

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Blake Shelton, Gwen Stefani