Shirtless Jeremy Piven -- HOT or NOT?

Jeremy Piven goes shirtless while celebrating Memorial Day with a bikini-clad gal pal on the beach on Monday (May 31) in Malibu, Calif.

The 44-year-old Entourage star has Twitter if you have to follow him — @JeremyPiven!

Earlier this month, Jeremy was seen shooting scenes for his hit HBO Series with guest star Jessica Simpson in Beverly Hills.

WHAT DO YOU THINK of shirtless Jeremy Piven — HOT or NOT?