Mariah Carey & Bryan Tanaka Enjoy Holiday Vacation in St. Barth's!

Mariah Carey happily strikes a pose in the ocean in front of her longtime boyfriend Bryan Tanaka on Thursday (January 3) at the Grand Cul de Sac Lagoon in St. Barts.

The legendary singer and her love were also accompanied by her two children – Moroccan and Monroe (not pictured) as she rocked a black wetsuit and enjoyed their family vacation in a clear bottom boat as her beau mans the oars.

PHOTOS: Check out the latest pics of Mariah Carey

Mariah‘s “All I Want for Christmas Is You,” which dashes from No. 7 to No. 3 this week, recently became the second Holiday tune ever to hit the Hot 100′s top five, and the first in nearly 60 years, according to Billboard.