Kate Hudson and Derek Hough are hooking up again following a brief romance back in December 2014, Us Weekly can exclusively reveal Credit: Robin Marchant/WireImage; D Dipasupil/Getty Images

Can't dance around this! Kate Hudson and Derek Hough are hooking up again, a source exclusively reveals to Us Weekly. The pair have been keeping quiet about their rekindled romance for the past month-and-a-half.

A second source tells Us that the Deepwater Horizon actress, 36, and Hough, 30, recently rocked out together at U2's concert at The Forum in Inglewood, Calif., on May 26. They were joined by Hough's sister, Julianne Hough, and her boyfriend Brooks Laich for a cute double date.

"She hugged him and they kept their arms around each other for a while before actually letting go," the insider tells Us.

Three nights later, the twosome headed back to The Forum for another U2 show on May 29. "They were inseparable at the concert together," a third source notes. Afterward, the two partied with Breaking Bad alum Aaron Paul at The Roxy. The source says they hung out at the bar and "looked cosy all night." (That same day, Hough was photographed dropping Hudson off at her car in West Hollywood.)

Us broke news in December 2014 that Hudson was caught making out with the Dancing With the Stars pro just days before the actress announced her split from Muse musician Matt Bellamy, with whom she shares 4-year-old son Bingham.

"Kate and Matt have been separated for some time now," a rep for Bellamy, 36, told Us at the time. "Despite this, they remain very close friends and committed co-parents."

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