Alabama is one of the most influential groups in country music history.

Formed by Randy Owen, Jeff Cook and Teddy Gentry in 1969, they called themselves Wildcountry before launching into fame as Alabama in the '70s and '80s.

Their first No. 1 single, "Tennessee River," hit the radio in 1980, sparking a massive career that includes 21 consecutive No. 1 hits, making Alabama one of the most successful groups in the history of country music. Just some of their career-defining hits include "Mountain Music," "Dixieland Delight," "If You're Gonna Play in Texas (You Gotta Have a Fiddle in the Band)" and "Song of the South," all of which are instantly recognizable as Alabama classics.

In addition to a string of chart-topping hits, the group also earned a number of awards for their work. They've taken home a combined total of 24 ACM, CMA and Grammy Awards over their multi-decade career, claiming the coveted Entertainer of the Year Award at the CMAs three years in a row, in addition to earning the same prize at the ACM Awards five times.

Additionally, the group belong to some of the industry's most respected organizations, with an induction into the Country Music Hall of Fame in 2005 and a star on the Music City Walk of Fame alongside fellow superstars Tim McGraw and Faith Hill, Reba McEntire, Jimi Hendrix and more.

With more than 75 million albums sold and more than 30 records hitting No. 1 on the Billboard charts, Alabama has become one of the most successful bands of all time. They made a comeback with their 2014 album, Southern Drawl, which debuted at No. 2 on Billboard's Top Country Albums chart, and a 2016 tour of the same name. The band announced in April 2017 that Cook is battling Parkinson's Disease and will no longer be able to tour as a member full time.

Scroll through the gallery to see some of the groundbreaking group's greatest moments.