Related by context. Frequent words. (Click for all words.) 66 duet 66 sing 60 sang duet 57 dueting 57 duets 57 duetted 56 duetting 55 singing 55 sang 54 dueted 52 sung 51 sings 49 croon 49 song 49 Hardest Word 48 crooned 48 Let Me Entertain 48 serenade 48 featured soloist 47 sing Happy Birthday 47 singers 47 stirring rendition 47 Daniel Bedingfield 47 soulful rendition 47 vocalists 46 sing Amazing Grace 46 Sheena Easton 46 Eva Cassidy 46 Stevie Wonder 46 singer 46 serenading 46 soloist 46 songs 46 singing sensation 46 Rufus Wainwright 46 sang medley 46 lip synch 46 marry 45 Heather Headley 45 Eoghan Quigg 45 lip synced 45 crooning 45 Sorry Seems 45 vocalist 45 Sings 45 Lesley Gore 45 peform 45 Roberta Flack 45 choreograph 44 Same Difference 44 Regina Belle 44 rendition 44 Michael Buble 44 lip synched 44 Maria Muldaur 44 Kimberley Locke 44 Alicia Keyes 44 romantic ballad 44 Alanis Morrisette 44 Vocalists 44 guest soloist 44 serenaded 43 Happy Birthday 43 Taylor Dayne 43 backing vocalists 43 Pam Tillis 43 acapella 43 ballad 43 perform 43 Unchained Melody 43 Leonard Cohen Hallelujah 43 Nanci Griffith 43 Beverley Knight 43 Musical Tribute 43 reteam 42 onstage 42 Elaine Paige 42 piano accompanist 42 Cyndi Lauper 42 lip sync 42 Liza Minelli 42 Andre Previn 42 Chuck Mangione 42 Johnny Mandel 42 Julia Murney 42 reprise 42 Idol alum 42 Rita Coolidge 42 female vocalists 42 Hallelujah Chorus 42 guest vocalists 42 Songstress 42 Help Falling 42 Billie Holliday 42 Raise Me 42 serenades 41 Paul Anka 41 Lennon Imagine 41 Freddie Mercury 41 Jingle Bell Rock 41 miming