Credit: Twitter via U2

U2 welcomed a pair of unexpected guests during their Barcelona concert last weekend. A bunny-eared Penelope Cruz and husband Javier Bardem, sporting a glistening cowboy hat and feather boa, stepped onto the stage to rock out and grind with Bono.

At the time, U2 tweeted a photo of the couple with the caption, “Mysterious guests tonight in Barcelona…” Since then, video of their on-stage shenanigans have hit the web.

Bardem grinded up against Bono as the singer performed “Mysterious Ways,” after which Cruz came out pretending to be jealous of their connection. “I think your missus wants you to go,” Bono remarked, before snapping some pics with the actors.

Watch video of the pair crashing the concert below.

U2 will finish out their Innocence + Experience Tour in late November before getting back to work on their new album Songs of Experience.