Aqua - Barbie Girl
http://www.youtube.com/watch?v=pxn567bHny8
Wow, you are in trouble now.
This is an older group but I just started listening to Thin Lizzy and WOW does that band rock.
For newer stuff, my two favorite bands continue to kick BUTT-
Float the newest CD by Flogging Molly is great. They are an Irish-Punk band with a bit of a folk music influence. Think of "Dropkick Murphy's" but more Irish than American-Irish.
Modest Mouse's We Were Dead Before the Ship Even Sank is their best yet in my opinion, and is the top of what alternative rock is today... again in my opinion (which is correct, I will brook no argument).
Apart of that I've got a lot but you said upbeat, and I tend to listen to a lot of smoother sounds or very out there stuff - related note, anyone a fan of Tom Waits?