#2 Alanis

Jagged Little Pill was one of the best albums of the 90's. At 30x platinum it remains THE best selling debut album by any female artist. Fun fact: Alanis Morissette was one of the kids on You Can't Do That on Television. She continues to act, and played Nancy's OB/GYN on the last season of Weeds.

Apparently in Canada, they have a different definition of ironic then we have in the states, but it has been corrected here.