Complex sentence: Jack Michael Antonoff (born March 31,1984) is a Grammy-winning & Golden Globe-nominated American musician and songwriter, best known as the lead singer and songwriter of Bleachers and lead guitarist of the indie rock band Fun.
Split into simpler sentences: Jack Michael Antonoff (born March 31,1984) is a Grammy-winning and Golden Globe-nominated American musician and songwriter. He is best known as the lead singer and songwriter of Bleachers, and the lead guitarist of the indie rock band fun.