He grew up in Long Island, New York.
The song he featured in Spectrum peaked #1 on the US Hot Dance Songs Billboard.
He started dating singer Carly Rae Jepson in 2012; but the couple later split. He began dating actress Hilary Duff in 2018 and the two got engaged in 2019. Their wedding took place on December 21, 2019. They have a daughter named Banks Violet Bair. He grew up with one brother.
Elvis Costello inspired him to start playing rock music.