Jack Tempchin is an American musician and singer-songwriter who wrote the Eagles song "Peaceful Easy Feeling"[1] and co-wrote "Already Gone",[2] "The Girl from Yesterday",[3] "Somebody"[4] and "It's Your World Now".

[5] During the Eagles' breakup period (1980–1994) he co-wrote with Glenn Frey producing "You Belong to the City", "Smuggler's Blues", "The One You Love", "I Found Somebody", "Sexy Girl" and "True Love".

[7] The song was first recorded in 1976 by the short-lived group Funky Kings, of which Tempchin and Jules Shear were members at the time.

[9] Tempchin has also toured extensively as a solo artist over the years, opening for Ringo Starr, Jackson Browne, Dave Mason, Poco, Dolly Parton, Karla Bonoff, Chicago, Christopher Cross, Kenny Loggins, Timothy B. Schmit, Barry McGuire, Tom Rush, Al Kooper and Emmylou Harris.

In 2024, filmmaker and fellow-songwriter Gregory Page released a feature-length experimental documentary, Midnight Jack: The Movie, which features music, comedy and philosophy from Tempchin.