Glen Campbell was one of Keith Urban's musical idols, so the superstar was thrilled when he got the chance to actually jam with the legendary guitarist and singer in 2009.
Brad Paisley turned to social media not only to remember Glen Campbell, but also to call for a cure for Alzheimer's "once and for all" in memory of the entertainment icon.
While rock legends such as Jimi Hendrix and Slash typically dominate the "best guitarist ever" conversations, country music is no slouch when it comes to producing legendary shredders.