"Let's Get Loud" is a signature hit because it did well overseas and continues to be heard and used for radio, amusement parks, special events, celebrations, etc. It's still one of her well-known songs and it was nominated for a Grammy.
"Get Right" was a Top 15 smash and a #1 hit on the WW chart. But good try though.
I was talking about USA popularity, since the Superbowl takes place here; how popular a song is overseas is irrelevant. Those songs wouldn't have been received as much as her "actual" hits. You tried though.