I'm a big fan of 80's Heart and I'm not ashamed of stating this clear and loud. “Heart” (1985), “Bad Animals” (1987) and “Brigade” (1990) are very special for me since they're literally packed with awesome songs! Covering their #1 hit “Alone” was an obvious choice... by the way, do you know it's a cover? Search “I-Ten Alone” on YouTube and try living with it :)
The bass part is very, very, VERY simple here, but I don't care because the song is just out of this freaking world, isn't it? The whole powerful instrumental take + Ann Wilson's outlandish vocals... I remember the first time I've heard it – I was freaking speechless!