Hey guys!

Just wondering what key the song I'll Be Waiting by Lenny Kravitz is in.
I thought it would be D but I just wanna make extra sure.
Heres the Youtube link in case you havent heard it


Sorry if this isnt the right place to post or whatever.
Im a noob so.
Please dont hurt me

Love! (or not...)
Thanks in advance!
My Gear:
Gear 4 Music Red Strat.
Gear 4 Music 15W Amp.
Heres a link to the Gear 4 Music Site
(you can get some good deals)