Happy Birthday, Anna! Idina Menzel, Josh Gad & More Are Back With a New Song in Frozen Fever Trailer

Look who’s back! Frozen’s Anna, Elsa, Olaf, Kristoff, and yes, even Sven, will return to the big screen in Frozen Fever, the new animated short that will play in movie theaters before the live action Cinderella beginning March 13. Kristen Bell, Idina Menzel, Josh Gad and Jonathan Groff lend their voices yet again to make our dreary winter a little more cheery. Have a look below as Olaf adds his own personal touch to Anna’s birthday cake, Elsa works her ice magic on the decorations, and, uh, some sort of steam room situation (again). If that weren’t enough, the sneak peek also includes a taste of the new song penned by Oscar-winning duo Robert Lopez and Kristen Anderson-Lopez!