Nicholas Valensi is an American musician, best known for his role as lead and rhythm guitarist in the American rock band The Strokes. Since 2001, the band has released six studio albums, some of which Valensi has also contributed keyboard and backing vocals to. In 2013, he founded the band CRX, for which he acts as singer, songwriter, and lead and rhythm guitarist. Their debut album, New Skin, was released in 2016, and was followed by the 2019 album Peek. Valensi has also worked as a songwriter and session guitarist with various artists, including Sia, Regina Spektor and Kate Pierson.

The Strokes are an American rock band formed in New York City in 1998. The band is composed of lead singer and primary songwriter Julian Casablancas, guitarists Nick Valensi and Albert Hammond Jr., bassist Nikolai Fraiture, and drummer Fabrizio Moretti. They were a leading group of the early-2000s post-punk revival and garage rock revival movements.