In reply to Yours Truly.

Michael Jackson actually has 13 solo #1's and 17 if you include the Jackson 5 hits. Beyonce has 5 solo #1s and 9 if you include Destiny Child hits.
Madonna may "only" have 12 #1 hits but she has 38 top 10 hits, more than any other artist... I love Rihanna but why do you need to downplay other artists like that.