Katy Perry: Los Angeles Sunday Workout!

Katy Perry keeps herself fit while heading to a spinning class on Sunday (Janaury 6) in Los Angeles.

Later in the day, the 28-year-old singer continued her workout with a hike in the hills.

PHOTOS: Check out the latest pics of Katy Perry

Earlier in the week, Katy was spotted holding hands with her boyfriend John Mayer after a romantic dinner at Osteria Mozza.

Katy recently tweeted, “Happy New Years everyone! So excited for 13… Be safe but party hard!”

15+ pictures inside of Katy Perry breaking a sweat in Los Angeles…