We know you've already gotten one workout playlist this week, but we just couldn't resist pulling together another one after last night's Grammy awards. With artists killing their performances one after the other, our ears were in heaven; our eyes weren't unhappy either while watching Justin Timberlake bring sexy back with Jay-Z and Alicia Keys dominating on the drums with Maroon 5. If these tracks weren't on your playlists already, be sure to download them immediately. If not, you'll be missing out on some serious musical motivation.
Now you tell us: Did you watch the Grammy's last night? What was your favorite performance?