Just ask British icon Daniel Radcliffe!
The only problem??
Just look at their sad, sad faces!!
Ch-ch-check out the clip to see Anna & Justin's priceless reactions (below)!!!
[Image via itv.]
Miss Independent in da house!!
Press PLAY (above) to hear the diva sing her GREATEST hits flawlessly.
Over her 10 year career the American Idol alum has pushed out more hits than Michelle Duggar has babies - and tonight she sang em all! Okay, not "all" — but a whole lot of them!
Seriously, that woman can saaang! Those pipes are unmatched!