As already known, Billboard releases their year-end charts to show the most successful acts of every year. "Top Artists" being the most prestigious list since it summarizes all data across the board. Both Selena and Demi have charted on this list together since 2011, while Hilary not so much.
Billboard Year-End Top Artists
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014 | Hilary
-
-
-
-
-
-
-
-
-
-
-
- | Demi
-
-
-
-
-
-
-
-
#93
#53
#39
#34 | Selena -
-
-
-
-
-
-
#39
#31
#52
#27
#49 |
Since this is a fair way to compare different markets (album sales going down, single sales going up, etc.) have Selena and Demi been bigger than Hilary this entire time when looking at these facts? Discuss.