Justin Bieber went for a run along some hiking trails the other day in Hollywood, and layered up for that West Coast weather.

JUSTIN BIEBER OUT FOR A RUN IN HOLLYWOOD HILLS

Bieber was seen wearing thick gray tights tucked into tall socks, with a baggy running shorts on top. Plus a tee shirt, gray hoodie, and personalized baseball jersey, Bieber would have worked up a sweat from just the layers alone. He had his iPod earbuds in for the run.

The 22-year-old was also recently seen boarding a private jet with a mystery woman in LA. Bieber bundled up in a Champion brand hoodie and sweat-shorts, over his apparently favorite item, gray tights. His unknown companion fittingly wore a gray tracksuit with a metallic pink parka on top.

See his latest music video for his collaboration with Major Lazer below.