About Bruno Mars:
Peter Gene Hernandez is an American singer, songwriter, record producer, voice actor and choreographer. Born and raised in Honolulu, Hawaii by a family of musicians, Mars began making music at a young age and performed in various musical venues in his hometown throughout his childhood. He graduated from high school and moved to Los Angeles to pursue a musical career. Mars produced songs for other artists, co-founding the production team The Smeezingtons.
I don't think anyone ever plans to change line-ups, but it's something that comes with being in bands. I was in a band once and there were always problems - members come and go - and some of the world's biggest bands have changed line-ups loads!Bruno Mars