Happy Birthday today (Feb. 7) to  Bon Jovi keyboardist David Bryan. He's 56. Also celebrating is Godsmack frontman Sully Erna (50) . In remembrance today, one time Kiss guitarist Mark St. John would have been 62.

David Bryan is best known as the keyboardist for Bon Jovi. He's played keyboards on all all of Bon Jovi's albums as well as solo projects from Jon Bon Jovi and Richie Sambora. Bon Jovi achieved worldwide success with the album Slippery When Wet in 1986. The album spent eight weeks at No. 1 on the Billboard 200 in the U.S. with hit singles "Livin' on a Prayer", "You Give Love a Bad Name". and "Wanted Dead or Alive". It is Bon Jovi's biggest selling album, and one of the best selling albums of all time going 12 times platinum in the U.S. The band released the album New Jersey in 1988 and went on hiatus after the New Jersey Tour. The band returned and released Keep the Faith in 1992. The album Crush in 2000 featured the hit "It's My Life". The band released their 13th studio album This House is Not for Sale in 2016. Bon Jovi kick off a 2018 U.S. Tour in March. Check out dates at the band's official website here.

Cheers to David Bryan on his birthday today!

Sully Erna
Ethan Miller/Getty Images
St. John
Mark St. John and Paul Stanley of Kiss/Youtube