Personal life

Arnold, born and raised in Provo, Utah, is the oldest of four daughters. On June 18, 2015, she married her high school sweetheart, Samuel Lightner Cusick. Arnold and Cusick exchanged vows in a private Mormon ceremony at the Salt Lake Temple in Salt Lake City. Fellow Dancing with the Stars dancers Brittany Cherry, Jenna Johnson, and Emma Slater were among her bridesmaids, with Witney Carson serving as her maid of honor.

Career

So You Think You Can Dance

Arnold was one of the finalists on the ninth season of So You Think You Can Dance. Although she was eliminated on August 29, 2012, she received repeated praise from the judges about her versatility as a dancer and her star quality. After the season, she performed on the 30-city tour.

Dancing with the Stars

Arnold became a professional dancer on season 16 of the reality television series Dancing with the Stars. At the time, she was the second youngest pro dancer in the show's history (Julianne Hough joined the show at 18). She was partnered with professional boxer Victor Ortiz. They finished in 8th place and were eliminated in week six after getting three 6s. She returned in season 17 as a member of the dance troupe, and continued in the troupe through season 20. She was promoted again to a professional partner in season 21, in which she partnered with National Guard member Alek Skarlatos. The couple made it to the finals and finished in third place. Arnold returned as a professional for season 22 and was paired with Boyz II Men singer Wanya Morris. Arnold and Morris made it to the semi-finals but were eliminated, finishing in 4th place despite receiving the highest scores of that night.

Season	Partner	Place	Average score
16	Victor Ortiz	8th	19.7
21	Alek Skarlatos	3rd	25.2
22	Wanya Morris	4th	26.5

Performances

Season 16 with celebrity partner Victor Ortiz

Week	Dance / Song	Judges' score			Result
		Inaba	Goodman	Tonioli
1	Foxtrot / "Daylight"	6	6	6	No elimination
2	Jive / "Runaway Baby"	6	6	6	Bottom two
3	Prom group dance / "The Rockafeller Skank" Contemporary / "Slow Dancing in a Burning Room"	No 8	points 7	awarded 8	Safe
4	Paso doble / "We Will Rock You"	6	6	6	Bottom two
5	Viennese Waltz / "Never Tear Us Apart"	7	7	7	Bottom two
6	Rumba / "I Just Called to Say I Love You" Team Paso doble / "Higher Ground"	6 7	6 8	6 7	Eliminated

Season 21 with celebrity partner Alek Skarlatos

Week	Dance / Song	Judges' score			Result
		Inaba	Hough	Tonioli
1	Foxtrot / "Ten Feet Tall"	8	7	7	No elimination
2	Jazz / "Don't Stop Believin'" Quickstep / "American Girl"	8 7	7 7	8 8	Safe
3	Tango / "Bad Things"	8	81/9	8	Safe
4	Paso doble / "Wake Me Up"	8	8	8	Safe
52	Rumba / "Let It Go"	8	7/73	7	No elimination
6	Jive / "Jailhouse Rock"	8	8/74	7	Safe
7	Viennese Waltz / "Haunted" Team Freestyle / "Ghostbusters"	9 9	8 10	8 9	Safe
8	Contemporary / "Holding Out for a Hero" Samba dance-off / "Lean On"	9 No	8 extra	8 points	Safe
9	Salsa / "Back It Up" Team-Up Dance (Paso Doble) / "We Will Rock You"	8 8	8 8	8 8	Safe
10	Waltz / "America the Beautiful" Cha-cha-cha Dance-off / "Fun" Trio Argentine Tango / "Ex's & Oh's"	10 No 9	10 Extra 9	10 Points 9	No elimination
11	Rumba / "The Pieces Don't Fit Anymore Freestyle / "Marchin On" Rumba & Tango Fusion / "A Sky Full of Stars"	9 10 9	9 10 9	9 10 9	Third Place

1 Score given by guest judge Alfonso Ribeiro.

2 This week only, for "Partner Switch-Up" week, Skarlatos performed with Emma Slater instead of Arnold. Arnold performed with Carlos PenaVega.

3 Score given by guest judge Maksim Chmerkovskiy.

4 Score given by guest judge Olivia Newton-John.

Season 22 with celebrity partner Wanya Morris

Week	Dance / Song	Judges' score			Result
		Inaba	Goodman	Tonioli
1	Cha-cha-cha / "Motownphilly"	8	7	8	No elimination
2	Salsa / "Echa Pa'lla (Manos Pa'rriba)"	8	8	8	Safe
3	Waltz / "The Star-Spangled Banner"	8	8	8	Safe
4	Samba / "Circle of Life"	8	9/91	9	Safe
52	Tango / "Hold Back the River"	8	7/73	8	No elimination
6	Jazz / "Bye Bye Bye"	10	9	10	Safe
7	Foxtrot / "I Say a Little Prayer" Team Freestyle / "Super Bad", "Living in America" & "I Got You (I Feel Good)"	9 9	9 9	9 10	Last to be called safe
8	Jive / "Can You Do This" Team-up Dance (Samba) / "Jump in the Line (Shake, Senora)"	8 10	8 93	9 10	Last to be called safe
9	Trio Paso doble / "Explosive" Charleston / "Shame on Me"	10 10	10 10	10 10	Eliminated

1 Score given by guest judge Zendaya.
2 For this week only, as part of "America's Switch Up", Morris performed with Witney Carson instead of Arnold. Arnold performed with Von Miller.
3 Score given by guest judge Maksim Chmerkovskiy.
3 Due to Goodman being the judge coaching Morris' team during the team-up dance, the viewers scored the dance in his place with the averaged score being counted alongside the remaining judges.

[ Source: Wikipedia ]