Arriving in style, Jennifer Lopez strutted onto the blue carpet at the 2013 Billboard Music Awards in Las Vegas tonight (May 19).

Joined by beau Casper Smart, the "On the Floor" singer donned a gorgeous gold gown and posed for the photographers before heading inside the MGM Grand.

Competition for each and every trophy tonight will be fierce, with “Saturday Night Live” alum Tracy Morgan handling the hosting duties.

The top nominees this time around are Taylor Swift, Maroon 5, and fun. each with eleven chances at scoring some hardware, while Rihanna received ten nods and Carly Rae Jepsen was nominated in nine different categories.