Despite having injured his back during rehearsals, Alfonso Ribeiro still managed to take part in the semi-finals of "Dancing with the Stars" season 19. Together with his partner pro dancer Witney Carson, the actor was able to pull off an Argentine tango routine and a contemporary dance to "Love Runs Out." The pair also managed to get impressive scores from the judges, garnering 36 points for the first dance and 39 for the second. The verdict: they were safe and are moving on to the finals. 

Tommy Chong and partner Peta Murgatroyd, however, had to say goodbye, having been eliminated after 10 full weeks of participation in the competition. But although he didn't make it to the finals, Chong has a "DWTS" accomplishment of his very own, having been deemed as the oldest contestant in all the show's 19 seasons to have gotten this far. 

As what can now be considered as their final performance in the show, Tommy and Peta danced jazz and rumba to "Tainted Love." 

Meanwhile, coming back Monday with Alfonso and Witney for the Judges' Choice and Freestyle week are the three other remaining dance couples who are all vying for the coveted Mirror Ball Trophy. The following were their scores in this week's Plugged/Unplugged episode: 

Bethany Mota and Derek Hough danced to "I Want You Back." For their samba routine, they received a total of 36 out of 40 points, and for their contemporary dance, the judges gave them a perfect score. 

Janel Parrish and Valentin Chmerkovskiy's song was "Blame" and their score for their paso doble routine was 40 and their Argentine tango garnered them 38 points. 

Sadie Robertson and Mark Ballas received 37 points for both their quickstep and Argentine tango routines, which they danced to two different renditions of "Problem." 

The remaining four pairs will return to the two-night season finale of "Dancing with the Stars" season 19 happening on Monday, Nov. 24, at 8 p.m. on ABC.