WENN

Bruno Mars has put himself forward as a model for Rihanna.

The Locked Out of Heaven singer took to Twitter on Monday and offered up his catwalk services, telling Rihanna that making music all the time can be frustrating.

"Sometimes I get so frustrated writing music I look in the mirror and say to myself 'I should've been a model'," he wrote.

"Yo @rihanna I'd like to submit some of my headshots for your Fenty Skin Campaign. I just took some new ones that I'm really proud of."

He added a crossed fingers emoji.