A blonde Penelope Cruz and Javier Bardem (rocking a blue feather boa) party with a smiling U2 as they play Barcelona concert
There is no doubt that Penelope Cruz and Javier Bardem are hot property.
They're Hollywood actors with high salaries and busy careers, and are parents to two toddlers.
So it might be fair enough to say that, like most hardworking parents, they probably don't get out too much.
So when they do, they like to let their hair down.
And possibly go incognito - which might explain why 'No Country For Old Men' Javier Bardem is rocking a blue feather boa and blue sequin stetson, and why Penelope has gone blonde for the evening.
Anyway, this couple are just so cool.
They were at U2's concert in Barcelona last weekend when Bono invited them up on stage.
The couple went up and danced around the band as they played their greatest hits in front of 24,000 fans at the Barcelona venue.
Penelope, who won an Oscar for her performance in 'Vicky Christina Barcelona', kept taking selfies of Bono and her husband as they played on.
At one stage, Bono was lying on the floor of the stage singing, with Penelope standing over him taking some more pictures.
U2 tweeted some images of their famous guests on their Twitter account - but these pictures have since emerged showing the couple on stage.
Rock on Javier and Penelope!