Mika refused to talk to Madonna when he joined the pop diva at an Oscar’s after-party — because he didn’t want to talk about his private life!

The Grace Kelly hitmaker admits he was “too shy” to open up to the Holiday singer.

“I’m not a socialite. My private life belongs to me only. Add to that the fact that I’m really shy,” Mika told British newspaper The Sun.

“During an Oscar after-party, I made a poor figure with Madonna.

“I was sitting at the same table with her and Christian Louboutin, but I was too shy to say even one word.

“I wonder what she might have thought about me.”