Katy Perry, Katharine McPhee & Boyfriend David Foster Hit Stage at Montecito Mudslide Benefit Concert!

Katy Perry sings her heart out as she hits the stage during the One 805 Kick Ash Bash benefiting First Responders at Bella Vista Ranch & Polo Club on Sunday (February 25) in Carpinteria, Calif.

The 33-year-old Witness singer performed a surprise set at the benefit for first responders and survivors of January’s deadly mudslide in Montecito.

The event was named after the area code where disaster hit and it raised nearly $2 million, according to organizers.

Also in attendance to show their support was Ellen DeGeneres, and Katharine McPhee, who also hit the stage for a special performance with boyfriend David Foster on the piano.

“This means the world to me,” Katy told CNN. “This is where I flourish. My heart was broken by the tragedy, the mudslide. I’ll do anything to help this community.”

FYI: Katy is wearing a Levi‘s Sherpa Trucker jacket.