It's fun in the sun for LeAnn Rimes and Eddie Cibrian, as the newly engaged couple have headed to Cabo San Lucas, Mexico. The two left for the tip of Baja two days ago, Dec. 28.

An ecstatic Rimes tweets that she is looking forward to "sun, bikinis, friends, food, tequila ... celebration!!!! Gonna be the best trip!!"

She even gives us a glimpse of her love life in paradise, posting a picture of herself and Cibrian with the caption "Kisses!!!!"

As we reported earlier, Cibrian popped the question on Christmas day, presenting Rimes with a five-carat oval diamond set in rose gold fleur-de-lis.

Rimes' publicist, who also represents newly engaged Natalie Portman, broke the news of Rimes' engagement to PEOPLE on Monday, Dec. 27. Rimes and Cibrian met on the set of the Lifetime movie ‘Northern Lights' while they were still with their former spouses.

Rimes will be releasing a love-centric album in the first quarter of 2011. Titled 'Lady and Gentleman,' the album is produced by Vince Gill and features Rimes' favorite classic country love tunes -- such as John Anderson's 'Swingin'' and other country standards by Waylon Jennings, George Jones and Merle Haggard.