News that Lady Gaga married boyfriend Taylor Kinney in secret exploded when Kinney's 'Chicago Fire' co-star Sophia Bush posted a very suspicious photo on her Instagram.

The snap had the pair hugging on the set of the drama and clearly on display is a seemingly new silver band on the 33-year-old actor's ring finger.

She captioned the photo, "I'm REALLY excited to be on @nbcchicagofire tonight! Just about as excited as I was to see my buddy #TaylorKinney at our press day yesterday. Bear hugs are the best hugs. #ChicagoFire #ChicagoPD."

However, what really got fans talking is the additional hashtags that the actress included in the caption.

She wrote, "#ThatsHisPersonalRing #NotForTheShow #EveryoneCalmDown #LindsayAndSeverideArentMarried."

If indeed Lady Gaga married Kinney, the 'Born This Way' singer opted to keep fans wondering.

She posted a photo on Instagram a week after news broke out but it wasn't to confirm or deny the rumors.

The 'Edge Of Glory' singer only showed off her new tattoo and her bare buttocks.

In one photo she lounges on a tattoo parlor bed while an artist works on her body art. In another, she shows off the still raw tattoo of a gloved claw on her back.

She captioned the snap, "#HausWork @nspired1 having a real night with the kids, we sure know how to party. #jazzpunk."

Taylor Kinney has also been keeping quiet about the marriage news as well.

The pair had previously been rumored to be engaged with plans to tie the knot during Gaga's first ever performance in space aboard the Virgin Galactic.

The couple first met on the set of Gaga's 'You And I' music video in 2009 and have been dating ever since.

Do you think Lady Gaga married boyfriend Taylor Kinney in secret or was Sophia Bush's Instagram post just a playful teasing for fans?