Christina Aguilera out for lunch at the Ivy Restaurant in West Hollywood

Stepping out for a dinner, daring Christina Aguilera out to lunch at the Ivy Restaurant in West Hollywood on Friday afternoon December 31. Joined by new boyfriend Matthew Rutles, so the "Burlesque" beauty stylish as she headed into the trendy West Coast eatery to fill up before the planned celebration festivities set for later in the evening. As for her party plans will Aguilera celebrates both a belated birthday bash paired with a New Year's Eve fat to be held at her scattered dwellings.

Christina Aguilera Shopping With Boyfriend Matthew Rutler at Fred Segal

Christina Aguilera goes shopping with boyfriend Matthew Rutles at Fred Segal Monday, December 27 in West Hollywood, Calif. The couple then headed over to Magnolia's restaurant for a snack. For the holidays, emergency Christina, 30, son Max, and Matt Breakfast Farm in Beverly Hills with his family at The Grove on Christmas Eve. The day before, Christina squeezed in some last-minute holiday shopping with Max at Barneys New York.

Christina Aguilera at the London premiere of "Burlesque"

Under her sexy new movies to the UK, Christina Aguilera was spotted in the London premiere of "Burlesque" in 13 day of December. The "Genie in a Bottle" babe showed up at the Empire Leicester Square in a flirty black dress, complete with a gray fur stole. Over the weekend, was Christina on stage in 'X Factor' final, where she sang along with Rebecca Ferguson.