It's just not Christmas until Mariah Carey sings, evidently, which is why the diva has joined the lineup of performers who'll be delivering holiday numbers at the National Christmas Tree Lighting, taking place December 6 in Washington, D.C.
The ceremony will be webcast live at TheNationalTree.org starting at 4:30 p.m. ET, but if you miss it, it will air on public television throughout the month of December.
Jane Lynch hosts the ceremony, and as previously reported, the other performers include Train , Queen of Soul Aretha Franklin , violinist Joshua Bell , jazz legend Arturo Sandoval , Latin star Prince Royce , rock band The Avett Brothers , opera star Renée Fleming , and acclaimed R&B songstress Janelle Monáe, who was featured on fun. 's smash hit "We Are Young."
Copyright 2013 ABC News Radio