what song is this?......sorry

I know this is an agravating question, but it's really aggravating me as well. I've been hearing this song on the radio in the mornings, and I can't for the life of me figure out what it is. It's not a new song, not real old either (70's, 80's rock maybe?). It's starts out with a real catchy guitar riff, and going into the chorus (I think) the words are "up all day, out all night, I know what you're doing." or something like that. it also has these breaks with a cool descending guitar riff. The song has a similiar sound to songs by Buckcherry, but I know it's not them. just reminds me of them. I'm sorry to ask a question like this, but I'd love to know the name of the song and who does it so I can learn to play it. Thanks for any help!

Maybe "Funk 49" by the James Gang ???

Here's a tab link if that's it.

http://www.olga.pl/main/g/gang_james/funk49.tab

Isn't it "long train running" by the Doobie Brothers?

Or "Sex Machine" by James Brown?

"Funk #49" by the James Gang.

It's Funk 49! Thanks a million!!!!! I'm sorry to have asked a question like that, but it was driving me crazy. Thanks again!!!!!!!!