Man. People have pretty much said what I was going to say.
Blind Melon - No Rain
Literally one of my favorite songs ever. I can listen to this song over and over and over and never get tired of it.
Proclaimers - 500 Miles
Incredibly catchy. You know you love it. I think they had more success in the UK.
Harvey Danger - Flagpole Sitta
Paranoia paranoia everybody's comin' to get me....
The Verve - Bittersweet Symphony
Damn this song for being stuck in my head now.
Fastball - The Way
I really like this song also. There's some decent songs on the CD as well. "Fire Escape" comes to mind, and it was on the radio for a while. I think they had another one about an ocean or something...but they never got past this song. I remember the summer it came out - it was on all the time, and I loved every minute of it.
I liked "Popular" by Nada Surf. They were at Austin City Limits last summer - I went and watched them for a while. Can't remember if they played this while I was there or not. So they are still around, but not nearly at the level they were at. Can't tell if that qualifies them as OHW status.
Lit was more like a 2-3 hit wonder. But Lit sucks so there's nothing else that really needs to be said about them.
Aha was a OHW? Shame. You know you love that song.
Cardigans - I don't know their band history (you'd have to go to Brak for that one, he's obsessed with the female lead), but their sound now is nothing like that annoying
Lovefool song. Just listen to "You're the Storm." It's hauntingly beautiful. I think they are still kinda big over in Europe.
The Toadies were big here in Texas (since they were from here) and played lots of shows, with plenty of songs on the radio. I never cared for 'em though. I guess "one hit album" works for them if we consider all of that.
The problem with OHW designation is that it's normally reserved for American audiences. A lot of these bands do well with multiple hits overseas. Chumbawumba comes to mind - they were thrown out of the spotlight after an appearance on (I think) Politically Incorrect with Bill Maher, where they encouraged fans to go steal their CD. Most store owners took it off the shelves from fear this would actually happen.
I gotta look through my mp3s when I get home. There's bound to be some I can mention from there.