STRANGE! Calvin Harris enjoys boys night in with Grimmy as girlfriend Taylor Swift parties in Hollywood

WHAT can you do when your girlfriend is off partying with her group of gorgeous pals?

Well, should you be Calvin Harris you get Nick Grimshaw round for a game of table tennis.

While the cat was away Calvin was actually acting fairly nicely, showing his pad in the Hollywood Hills to the Radio 1 DJ round and playing with him – and his millions of listeners – his new single.

That Is What You Came For is a cooperation with superstar vocalist Rihanna and on course to become his next top ten song.

The music-maker declared that he’s been exploding to unveil the track, telling Grimmy: “I’ve been playing this in my own car for too long, I’ve not been able to tell! I’m completely obsessed with this tune.”

He finally played the track in a trailor at the Coachella Festival in California. She declared it: “Sick.”

Adding a little glamor to her ensemble she also donned a fitting coat that was left open to show her lace and sheer bralet.

Khloe Kardashian and Kourtney and sisters Kylie Jenner were also at the party. Other guests included Ashlee Simpson, Hailee Steinfeld, Lenny Kravitz and Shanina Shayk.