Spencer Ludwig (born 24 June 1990) is an American trumpeter, singer, songwriter, producer and musical director from Los Angeles, California.

The former trumpet player for the band Capital Cities, he recorded on their debut album In a Tidal Wave of Mystery and toured with them from 2011 to 2015.

He has also performed with Harry Styles, Dua Lipa, Gallant, Mike Posner, Foster the People, Portugal.

[3] Ludwig learned to play the French horn in high school but decided to apply to college as a trumpet player.

In March 2018, he released his first single as an independent artist "Just Wanna Dance" and he collaborated with five-time Latin Grammy winner Fonseca on his song "Por Pura Curiosidad",[citation needed] which was featured on his album Agustín and earned a Latin Grammy in 2019 for Best Traditional Pop Vocal Album.