John Legend and Chrissy Teigen gave out a sweet treat in L.A. ... and, it wasn't just the Girl Scout Cookies they were slinging -- they also stopped in to sing for fans on the TMZ Celebrity Tour!
Chrissy Teigen has shared her grief over the loss of her beloved family dog Penny - revealing the pet pooch was born on the day she married husband John Legend and had been there for "every baby, every..