One more couple hit the road on Dancing with the Stars as four pairs secured spots in the semifinals. Plus, DanceCenter returned, and Susan Boyle and Michael Buble performed. Which pair got the boot? Find out below!

Our favorite dancing robots get the encore slot — in front of Hef and some bunnies! Len defends the choice of Joanna and Derek as opposed to the perfect-30-scoring Mya and Dmitry because J. and D. produced a paso with lots of content and gave us a glimpse of how Dancing would look in Season 50. We can only hope, Len, we can only hope.

First safe couple:
Joanna and Derek

Because going through everyone's dances twice already isn't enough, we get another recap of Monday. Aaron likes the 9s he got for his '90s samba, Mya feels like pigs are flying, Donny thinks his '80s paso entertained and scared everyone, Derek and Joanna say that was the worst they've ever danced the quickstep and Kelly opens the waterworks. Girl hugs it out with Louis and whispers through tears, "I love you, Louis van Amstel," after their foxtrot. All together now: Aww!

Next, we get a primo performance from Michael Buble, accompanied by Jonathan, Anna, Maks and Cheryl. It's always nice to hear people who can carry a tune live. Ahem, Taylor Swift.

Second safe couple:
Mya and Dmitry

DanceCenter
It's back! This time, Kenny Mayne, Jerry Rice and Len get an assist from backstage correspondent Stacy Keibler. I still maintain that Ty Murray should get in on this.

First up: Joanna, whose chest size will not be revealed. "Don't be rude." After some banter over her being Polish and having to polish her steps, Kenny rips her on her weird laugh... which reminds Jerry of that of a seal. Win. As for Derek, Kenny does not approve — mostly because of this. "I taught him that," Jerry deadpans.

Next up is Donny, whose Dancing credentials includes not fainting on TV. His age? Timeless. Truth. Len's still bitter about being passed over as the object of Donny's affection, but Donny tells Stacy backstage that it's all platonic between him and Bruno, who's conveniently staring into his eyes.

Aaron, they say, is a crybaby. Kenny gives Len a hard time for making A.C. weep, but the old curmudgeon insists he was just being emotional. The kid also has the lowest pain threshold of any man he's ever seen, Kenny says. Cue montage of Aaron wincing and wimping. "He as fragile as a snowflake resting on a lily," Jerry says.

Kelly is the daughter of the.....