Best and Worst of the 2015 Grammys: From Madonna to AC/DC to Sam Smith

Good god, that was long.

With a running time of over three hours and an oddly sequenced structure, tonight's Grammys grew ponderous long before the final fadeout. That said, there were at least a handful of solid performances, and there were certainly no shortage of stars — a huge number of pop heavyweights including Madonna, Kanye West, Beyonce and Lady Gaga hit the stage to perform, and the crowd was chock-full of industry A-listers dancing and clapping away (here's looking at you, Sir Paul).

So what were the best and worst moments, in our professional opinion? Check out our full roundup in the gallery below, then let us know how you felt about the show in the comments. (You can see a full winners' list here.)