george pennachio gives us a row cap. >> peta brings so much happiness. it as going to keep going up and up and up. it has complete and simple. >> reporter: half a opinion the behind, emmitt smith and cheryl burke sambaed to success. >> i know some dances are difficult for me but i'm going in with the proper attitude. ill a have to put in longer hours and do what i have to do. kirstie alley and maksim chmerkovskiy had their best dance of the season. after the he is they were, sited to talk about the gangnam style number you'll see. >> there's something about it. >> reporter: with 24 1/2 points, kelly monaco and val chmerkovskiy got the lowest. >> you know, i just -- there are no excuses. the other four danced a group number that got them 29 1/2 points. and the good for chan came after melissa rycroft herniated a des income her income. >> i was happy to be out there. adrenaline takes over definitely. i think i was more cautious. >> you'll see for more guilty pleasures tonight. george pennachio for abc news. >>> we have a plea for help that turns into a hom

george pennachio has the details for us. >> with a score of 27 out of 30, sabrina bryan and louis van amstel danced. >> thank you for that miss bryan. >> thank you. >> a half point behind, gilles marini and peta murgatroyd. he dropped his drawers. joey fatone butted in. shawn johnson and derek hough came in third. >> it's a step up from last week. >> apolo ohno and miner miner were a half appoint behind with helio castroneves and chelsie hightower. >> i couldn't have been happier with his job. >> tied for fifth. that's not bad. >> the couple that would make less mistakes will be there in the end. we'll try to improve next time. >> then a three way tie for seven, emmitt smith, cheryl burke, kym johnson. >> come on. i guess that's all we can do. >> kirstie alley and maksim chmerkovskiy next to last with bristol palin and mark ballas at the bottom. bristol palin's mom liked it. >> it was a fun night. >> katherine jenkins returns to the ballroom tonight but this time she will be the musical performer. george pennachio for abc2 news. >>> another all new "dancing with the stars" all stars t