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Charlie Puth throws major age shade at the Backstreet Boys on 'Drop the Mic'

On Drop the Mic, the Backstreet Boys and Charlie Puth went head-to-head, totally roasting each other over, you guessed it, their age difference.

In fact, before the battle even started, Puth was already throwing shade at the Backstreet Boys. When host Hailey Baldwin asked Puth how he researched the best selling boy band of all time, Puth said, "Well, my mom unpacked her old Gateway computer. We powered up the dial-up modem, and we went through our old Napster search history and I found those downloads of Backstreet Boys songs and I was like, 'Yeah, I do remember these guys,' and, you know, it just came all back to me."

The battle was totally entertaining, as Nick Carter kicked it off, rapping, "I saw you on YouTube, you had me in tears. You covered Adele, and Adele covered her ears. We'll have you runnin', man, I hope you're an athlete. 'Cause, dude, you just went down the wrong back street." Puth then took a jab at the guys over their age, rapping, "100 million Backstreet fans can't be wrong, but 100 million Backstreet fans can be moms, Nick." To which Carter responded, "What's wrong with that?"

The Backstreet Boys defended their fan-moms and were definitely able to hold their own but, in the end, internet sensation Puth was the one who walked away with the golden trophy and bragging rights.