Justin Timberlake and Jessica Biel haven't been seen together in a while. Is there a split brewing?

Considering the occasional actress is usually glued to his side at events, when she wasn't present at the American Music Awards, his 'SNL' rehearsals, taping or after party, tongues began wagging about the state of their union.

Biel addressed her absence from the AMAs on Twitter:

But what about the rest? And if she was home not doing anything, well, why wouldn't she go?

As for the 'SNL' events, a witness told Radar Online, “Justin was solo again at the 'Saturday Night Live' after party and he stayed until nearly 5AM. Everyone was buzzing about her absence.”

The source added, “She wasn’t with him at rehearsals on Friday either, which was sort of weird. And it’s not that Justin was flirting with other women or anything at the party but something just didn’t seem right. It was literally what everyone was talking about; whether he and Jessica have split.”

Time will tell, but their history of on-and-off splits and reunions may be telling in and of itself. Here's hoping they can work it out!