Metro Boomin just turned 22 in September, and he's already racked up one of the most enviable discographies in modern hip hop. Everyone from Gucci Mane to Drake to Nicki Minaj has called upon the St. Louis-via-Atlanta beatsmith for some work, and it's no surprise that he's been able to find success with such a wide range of artists. He began his career as a strict Lex Luger disciple (although there are some weird exceptions like SL Jones' "Spaz"), but he's considerably expanded his musical palate, taking cues from genres as far-flung as psychedelic, industrial, video game soundtracks, goth, gospel, smooth jazz and even hair metal when crafting his tracks. Hell, he might even flip an Adele track. 

All of this comes courtesy of a tireless drive. Just ask his friend and frequent collaborator Southside, who told me earlier this year that Metro used to call him from high school to try to get his foot in the door of the ATL scene. To make a long story short: it worked. Just today, he made the unlikely pairings of Joey Bada$$/G Herbo and Future/Lil Bibby sound incredible, and did the unthinkable and flipped Bill Conti's iconic "Rocky" theme into a trap anthem. Those would be career highlights for literally any other producer in the game, but for Metro, there are scores of other achievements from this year that could top those. 

Today we've dug back into his vaults to find the 20 beats that could stand on their own as amazing pieces of music. They're not chosen for the vocals, and we tried to limit it to tracks that Metro made with one or fewer collaborators (so for one, Travi$ Scott's five producer extravaganza "3500" is out). As always, let us know your favorites, and tell me why I'm a fool for my choices.