30 Days of Music - Day 4

Good morning and welcome to Day 4 in my participation in the 30 Days of Music challenge. On Day 4, i need to tell you:
What song do you play when your feeling happy?

As soon as i read this prompt, one song popped straight into my head - " All I Wana Do " by Sugarland. I get the feeling that some of you may never have heard of Sugarland ( who are great country music duo ) and this would be the part where i get to prattle on about eclectic my tastes are. That, however, shall remain to be seen with my future video choices. What i will say is this a sweet country/pop song thats fun and sexy and great for singing along ...all the things i want to do when i'm happy. Hell, i've even started playing this song when i want to GET happy - you know, like on Monday mornings on the way to work. And this song will definately be making the playlist for my wedding reception, simply because its so joyful and makes me want to get funky with my fella  ( as influenced by lyrics such as " I dont wana get baby, lets turn off the phone ... " ). What song gets you in the happy mood?