Glen Burtnik (born Glenn Burtnick; April 8, 1955) is an American singer, songwriter, entertainer and multi-instrumentalist, best known as a member of Styx from 1990-1991 and again from 1999-2003.

[6] Burtnik appeared in the Broadway production of Beatlemania as Paul McCartney, alongside Marshall Crenshaw, who played John Lennon.

This band are regular performers at The Fest For Beatles Fans, annually held in the Metropolitan New York City area and Chicago, Illinois with occasional stops elsewhere.

Burtnik rejoined Styx in late 1999, as original bassist Chuck Panozzo could not play full time anymore because of illness.

Burtnik and his family were featured on the season premiere episode of the Discovery Channel show, It Takes a Thief, which aired on October 16, 2006.

Glen Burtnik's Xmas Xtravaganza is a regular holiday concert which benefits area, food banks and other worthwhile charities.

[3] It features a cast which changes from year to year, but in the past has included artists such as Patty Smyth, John McEnroe, Phoebe Snow, Marshall Crenshaw, The Patti Smith Band, Fred Schneider (B-52's), Jill Sobule, Idina Menzel, Jeffrey Gaines, Freedy Johnston, Dan Bern, John Waite, Curtis Stigers, Styx, Mary Lee Kortes, and Willie Nile, amongst others.