Sadie Robertson and Mark Ballas had a small disagreement over something silly. In the video that "Dancing with the Stars" uploaded, the contestants of the show together with their partners played a game of "Him, Her, Me." It was a game to see how much the partners know each other.

In the video, Sadie and Mark can be seen disagreeing over who takes more selfies. Mark says that Sadie has the habit of taking plenty of selfies. However, it's not that obvious because the photos are kept in Sadie's phone and she doesn't share it on social media. In fact, Mark says that Sadie already filled up his phone's memory with her selfies, too.

It was a fun game for the contestants, but this week on "Dancing with The Stars," things will get much more competitive once the partners hit the dance floor. Coming up is America's choice week, wherein viewers of the show made a choice on what theme the contestants will dance to.

What could they be dancing?  Well, it's not too much of a guess since Mark revealed some details on his blog in Hollywood Life. It appears that Sadie and Mark will perform a trio dance with another female dancer.

"We've chosen Emma Slater to work with us because we're doing the Foxtrot. We were originally going to choose a male for the Foxtrot so we could have Sadie dance with two guys, but the other pro that we wanted was taken. That was such a bummer! But I'm very excited to work with Emma, and it'll be great for Sadie to learn from a pro female all week," says Mark.

It is common practice to have someone of the opposite sex from the celebrity contestant when calling in a third dancer for the routine. This is to prevent the judges from comparing the celebrity to the pro dancer. However, it looks like Mark and Sadie had no choice.

Nevertheless, it's a daring move for the dancing duo. With a risk like this, it can propel them to the top if they can pull it off. Mark also teased that they will dance to one of his favorite songs.

"Everyone's hearts will melt when they hear it," described Mark.

Don't miss the next episode of "Dancing with The Stars" on Monday, at 8 p.m. ET on ABC and see how Sadie and Mark will do this week.