His full name is Mika Holbrook Penniman.
He was going to be called Michael but I think it was his mother who thought it was too mainstream so he was names Micha (pronunced Mika). People kept on pronucing it wrong so later in life he changed it to Mika.

I hope this helps.

According to wiki his name is this Michael Holbrook Penniman.

His name is Michael Holbrook Penniman, his nickname was originally Mica, but he got sick if people pronouncing it wrong so he changed it to Mika

I really like his full name...he has interesting name I think