I discovered Electric Light Orchestra by accident. I heard their cover of Chuck Berry's "Roll Over Beethoven" on American Top 40. I immediately bugged my mom to take me to the mall so I could buy the album, and I've bought every album by ELO since. ELO is playing The Forum in LA in the spring, and you can bet your butt I'm going.
Here's the link to my iHeartRadio playlist of my favorite ELO songs. I usually post 10. This week you get a bonus track!