Newly Engaged Sofia Vergara & Joe Manganiello Celebrate NYE at Britney Spears Show in Vegas!

Sofia Vergara wraps her arms around fiance Joe Manganiello while grabbing dinner at Strip House before heading to Britney Spears‘ Piece of Me show on Wednesday evening (December 31) at Planet Hollywood Resort and Casino in Las Vegas.

The newly engaged couple was joined by Arnold Schwarzenegger and his girlfriend Heather Milligan.

PHOTOS: Check out the latest pics of Sofia Vergara

“Excited for the new year!!!! Wishing everyone a lot of work and happyness!!!)❤️❤️❤️❤️❤️,” Sofia tweeted.

She kept her engagement ring hidden, but flashed the rock earlier in the day while catching her flight out of LAX Airport in Los Angeles.

FYI: Sofia is wearing a Herve Leger by Max Azria dress.

25+ pictures inside of Sofia Vergara and Joe Manganiello ringing in 2015 together…