1. Internet sensation Colbie Caillat sang I‘ll be Home for Christmas‘‘ and joined R&B singer–songwriter Ne–Yo for a duet of Silent Night.‘‘ Tenor Andrea Bocelli performed Adeste Fideles,‘‘ and American Idol‘‘ runner–up McPhee took over the tune to sing O Come All Ye Faithful.‘‘ High School Musical‘‘ star Vanessa Hudgens performed The Christmas Song (Chestnuts Roasting on an Open Fire),‘‘ and Tony–winner Heather Headley sang Have Yourself a Merry Little Christmas.‘‘ Country music legend Jackson performed his own holiday song, Let it be Christmas.‘‘ The president and first lady joined the performers on stage for the final number, Hark, the Herald Angels Sing.‘‘ The concert will air Wednesday night on Turner Network Television.

2. Internet sensation Colbie Caillat sang "I‘ll be Home for Christmas" and joined R&B singer–songwriter Ne–Yo for a duet of "Silent Night." Tenor Andrea Bocelli performed "Adeste Fideles," and "American Idol" runner–up McPhee took over the tune to sing "O Come All Ye Faithful." "High School Musical" star Vanessa Hudgens performed "The Christmas Song (Chestnuts Roasting on an Open Fire)," and Tony–winner Heather Headley sang "Have Yourself a Merry Little Christmas." Country music legend Jackson performed his own holiday song, "Let it be Christmas." The president and first lady joined the performers on stage for the final number, "Hark, the Herald Angels Sing." The concert will air Wednesday night on Turner Network Television.