'Dancing With The Stars' Season 21: Tamar Braxton withdraws due to health

Spoiler alert! This recap definitely has a few spoilers.

Tonight on the Semifinals of Dancing With The Stars American Hero Alek Skarlatos and his professional dancing partner Lindsay Arnold performed a Waltz to "America The Beautiful".

But because of Tamar Braxton's withdrawal, no celebrity was out.

Even though we wish her a speedy recovery, the show must go on as there is still a Mirror Ball at stake! Her partner, Val Chmerkovskiy, talked about the multiple blood clots found in her lungs, and for health reasons, she had to withdraw from the competition. Which means that all four remaining couples are going to the finals, and there wasn't an elimination on Monday's episode.

The judges will then score the dances and each couple that wins the dance-off challenge will be awarded three points. These points will be added to the points received for the two previously scheduled dances the couples have been preparing: one featuring a dance style they have not danced yet this Season and another as a trio featuring a second pro dancer of their choice.

Their first dance of the evening was a high-energy salsa that included lights, confetti, and even a crowd surf from . Enlarge Adam Taylor/ABC Lindsay Arnold and Alek Skarlatos perform on "Dancing with the Stars". Oh, our stars and stripes! Carrie Ann Inaba also said that she was anxious about Nick, but that this was the most solid he'd ever been.

In his package, Carlos revealed that his parents' divorce hit him hard, like a Holly Holm kick to the heart hard.

Carlos PenaVega and Witney Carson will do a contemporary to the One Direction song "Drag Me Down". "All the Nick we've seen from day 1 was in there tonight".

Alek took to the floor next with Lindsay and Emma Slater for an Argentine tango that brought them straight 9s from the judges. Then he lost his sister to an overdose, and Nick blamed himself. Bindi & Derek defeated Nick & Sharna.

Bindi and Derek also won a samba dance-off against Backstreet Boy Nick Carter and Sharna Burgess, which earned them an extra three points.

And the chest outta one? They had their drama and said that Nick & Sharna and Bindi & Derek were in jeopardy of going home, but no one was eliminated and they will all be back for the finals!

For the individual routines, Bindi and Derek executed a sassy salsa. For the trio, the couples will be joined by a fellow pro to help showcase the growth of the remaining contestants. Bindi and Derek with Mark Ballas danced a Jazz routine for another flawless 30 score! "I think you lost steam at the end", Julianne said.

The Trio Dance with Carlos, Witney and Karina Smirnoff: Now that's how you do a Charleston!

Nick and Sharna brought Peta Murgatroyd back for their trio dance on Dancing With The Stars. Good on Tamar for taking care of herself, but it is a bummer that the timing couldn't have worked out more in Alexa's favor - especially after she hoisted herself up to the top of the leader board with two ideal scores.