SO YOU THINK YOU CAN DANCE Down to 8 Finalists, Jenna Elfman to Guest Judge

Last night, after America's vote was revealed on So You Think You Can Dance and following a tough deliberation, the judges - Nigel Lythgoe, Mary Murphy and guest judge Debbie Allen - sent Makenzie Dustman and Nico Greetham home at the end of the show.

Next week, on Tuesday, Aug. 20 (8:00-10:00 PM ET live/PT tape-delayed), the competition heats up when guest judge Jenna Elfman ("1600 Penn," "Damages") joins the judging panel as the Top 8 finalists - Hayley Erbert, "Fik-Shun," Jasmine Harper, Jenna Johnson, Paul Karmiryan, Tucker Knox, Aaron Turner and Amy Yakima - will be paired up with All-Star partners.

For the first time on SO YOU THINK YOU CAN DANCE, the All-Stars will be performing and choreographing the routines for their respective contestants. The All-Stars include Stephen "tWitch" Boss (Season Four), Dmitry Chaplin (Season Two), Comfort Fedoke (Season Four), Courtney Galiano (Season Four), Chelsie Hightower (Season Four), Allison Holker (Season Two), Mark Kanemura (Season Four) and Travis Wall (Season Two).

Below are the So You Think You Can Dance Top Four female finalists:

Hayley Erbert Age: 18
Hometown: Topeka, KS
Dance Specialty: Contemporary
Facebook: facebook.com/Dance10Hayley
Twitter: @Dance10Hayley

Jasmine Harper Age: 20
Hometown: Lawrenceville, GA
Dance Specialty: Contemporary
Facebook: facebook.com/Dance10JasmineH
Twitter: @Dance10JasmineH

Jenna Johnson Age: 19
Hometown: Salt Lake City, UT
Dance Specialty: Ballroom
Facebook: facebook.com/Dance10Jenna
Twitter: @Dance10Jenna

Amy Yakima Age: 19
Hometown: Northville, MI
Dance Specialty: Jazz
Facebook: facebook.com/Dance10Amy
Twitter: @Dance10Amy

Below are the So You Think You Can Dance Top Four male finalists:

"Fik-Shun" Age: 18
Hometown: Las Vegas, NV
Dance Specialty: Hip-Hop
Facebook: facebook.com/Dance10FikShun
Twitter: @Dance10Fikshun

Paul Karmiryan Age: 22
Hometown: Glendale, CA
Dance Specialty: Latin Ballroom
Facebook: facebook.com/Dance10Paul
Twitter: @Dance10Paul

Tucker Knox Age: 23
Hometown: Nashville, TN
Dance Specialty: Contemporary
Facebook: facebook.com/Dance10Tucker
Twitter: @Dance10Tucker

Aaron Turner Age: 25
Hometown: Las Vegas, NV
Dance Specialty: Tap
Facebook: facebook.com/Dance10Aaron
Twitter: @Dance10Aaron

Viewers were also reminded of the SYTYCD 2013 tour, where fans can see the Top 10 finalists this fall. The 42-city tour kicks off Tuesday, Oct. 1 at the Wharton Center in East Lansing, MI, and tickets Go On sale Friday, Aug. 16. The tour runs through Wednesday, Nov. 27, when it makes its final stop at the Nokia Theatre L.A. Live in Los Angeles, CA. Tickets and more details are available at fox.com/dance

SO YOU THINK YOU CAN DANCE was created by Simon Fuller and Nigel Lythgoe and is from 19 Entertainment, a division of Core Media Group, and Dick Clark productions, inc. The series is executive-produced by Fuller; Lythgoe; Barry Adelman, Executive Vice President of Dick Clark productions, inc.; and Allen Shapiro, CEO of Dick Clark productions, inc. Visit the official So You Think You Can Dance site at www.fox.com/dance to view exclusive videos, photos and contestant profiles.