The charming and humorous KT Tunstall dropped by the Rolling Stone offices the other day for lunch, then shared this story about playing on the street for homeless people. It'll warm your heart's cockles.

As a bonus, here's some exclusive audio from Austin Scaggs' interview with Tunstall from our current issue:

• Tunstall recalls the times in her twenties when she almost threw in the towel:

• Tunstall talks about her habit of dating drummers:

• Tunstall opens up about her younger brother, who is deaf, and how communicating with him has affected her music: