Sticky Situation! John Travolta Has Odd Gunk Along His Hairline — Is He Wearing A Wig?

In fact, there might be more behind John Travolta’s usually perfect hair than his genetics.

During his recent appearance at the FX Network's TCA Press Tour in Pasadena, Calif. on Jan 16., John accidentally revealed a secret about his locks.

Close-up pictures showed a trace of glue around his hairline.

This sparked rumors that John, 61, had a wig on at the event.

But John has more hairy issues to worry about; As Star previously reported, his marriage to Kelly Preston, 53, could be on the rocks. "They could limp along in this marriage forever," an insider told Star. "But it just seems like, for Kelly, the benefits of married to John are outweighed by the negatives."