no one has left the band, but i think they have like, 9 members now. so maybe one of them is singing too. i'm pretty sure Derrick's wife is in the band now, and she sings a bit in his other band, so maybe it's her but i'm not 100% positive on that.
edit: yep, lol, this is their roster now
David Bello - Vocals
Josh Cyr - Bass
Derrick Shanholtzer-Dvorak - Guitar, Vocals
Greg Horbal - Guitar, Vocals
Steven Buttery - Drums
Chris Teti - Guitar, Trumpet
Katie Shanholtzer-Dvorak - Keyboards, vocals
Julia Peters - Cello
it actually looks like thomas diaz isn't in the band anymore?