def leppard has sold more 100 million records worldwide.ll you that's not what's most impressive about him. to really understand that, we need to go back to the '80s. rick joined def leppard when he was just 15. by the time he was 21, the band was a huge success. rick was on top of the world. >> hi, we're def leppard on mtv. music television 24 hours a day. >> reporter: and then, you buy a corvette. >> ah, yeah. >> reporter: december 31st, 1984. an afternoon drive in that corvette would change the course of rick's life. the crash happened fast. it was a violent rollover. his right arm broken. his left arm gone. this picture taken of rick the first day out of the hospital. it would be the first day of the rest of his life. relearning how to do everything from water-skiing and shooting pool to playing drums with just one arm. the band stood by rick, and when he was strong enough, def leppard went on recording and touring. releasing hysteria with a chart-topping hit "love bites". the band's most successful album to date. >> so this is where it

. >>> up next, def leppard's drummer, rick allen.s trying to help others through his art. >>> tomorrow on "nightline" -- >> everything with guns off the ground, go! >> we talk to the cast of "dune." >> i would have played the sand in this movie had they offered it to me. pic® can help you get back in it. oh, oh, oh, ozempic®! my zone... lowering my a1c, cv risk, and losing some weight... now, back to the game! ozempic® is proven to lower a1c. most people who took ozempic® reached an a1c under 7 and maintained it. and you may lose weight. adults lost on average up to 12 pounds. in adults also with known heart disease, ozempic® lowers the risk of major cardiovascular events such as heart attack, stroke, or death. ozempic® helped me get back in my type 2 diabetes zone. ozempic® isn't for people with type 1 diabetes. don't share needles or pens, or reuse needles. don't take ozempic® if you or your family ever had medullary thyroid cancer, or have multiple endocrine neoplasia syndrome type 2, or if allergic to it. stop ozempic® and get me

. ♪ pour some sugar on me ♪ >> def leppard.ge rock like r.e.m. was something new entirely. ♪ follow me ♪ ♪ yeah follow me ♪ ♪ i got my spine ♪ ♪ i got my orange crush ♪ >> the way that peter buck played guitar and the way that stipe sang where the voice was incredible but you couldn't quite figure out what he was saying, it just made them more alluring and kind of more mysterious. you could get why that band could become huge. ♪ >> it wasn't new wave, it wasn't a new romantic. they started calling it alternative music. ♪ it's the end of the world as we know it ♪ ♪ it's the end of the world as we know it ♪ ♪ and i feel fine ♪ ♪ fine fine fine fine ♪ >> you know, this is the thing about the '80s. everyone thinks it's about crazy haircuts, lots of makeup, insane clothes and it was. but the thing about this music that lasts is that their songs were so good. >> you can go back and listen to those records, from the engineering to the musicianship to the writing and to the performance of it. it surpasses most music. >> everybody had a