Question: Which performer from the Dance on Sunset music series had a recurring role on the TV show "7th Heaven"?

Context paragraphs:
Chase Parker: Chase Parker (born April 22, 1994) is an American child actor who was born in San Bernardino County, California.  He is the grandson of actress Eleanor Parker and nephew of Paul Day Clemens, Jr.  Chase Parker started acting when he was only 2 years old, and his TV debut was for an Arby's commercial.  Then, in 1998 he acted in his first TV show, "General Hospital" as a younger version of Nikolas Cassadine.  In 1999, he played as Benjy Evans in "Sunset Beach" and guest starred in "7th Heaven" as a younger version of Matt.  He finished at The Woodlands High School.

Rheagan Wallace: Courtney Rheagan Wallace (born June 9, 1987 in Dallas, Texas) is an American actress who had a brief recurring role as Georgia Huffington on the television series "7th Heaven".  Her other television credits include "Agents of S.H.I.E.L.D.", "Devious Maids", "", "ER", "That's So Raven", "Malcolm in the Middle", "NYPD Blue", "Judging Amy" and "Walker, Texas Ranger", among other series.

Safe Harbor (TV series): Safe Harbor is an American television drama series that aired on The WB Television Network from September 20, 1999 to November 28, 1999.  The series was created and executive produced by Brenda Hampton, who at the time was best known for work on the fellow WB series "7th Heaven", the series was paired with "7th Heaven" on the network's Monday night lineup.  Despite "7th Heaven" being the No. 1 show on The WB during the 1999-2000 season, "Safe Harbor" was unable to hold a solid audience after "7th Heaven" and was canceled after ten episodes and one season with the show moving to Sunday nights where the last two episodes aired.

7th Heaven (1927 film): 7th Heaven (also known as Seventh Heaven) is a 1927 American silent romantic drama directed by Frank Borzage, and starring Janet Gaynor and Charles Farrell.  The film is based upon the 1922 play "Seventh Heaven", by Austin Strong and was adapted for the screen by Benjamin Glazer.  "7th Heaven" was initially released as a standard silent film in May of 1927.  On September 10, 1927, Fox Film Corporation re-released the film with a synchronized Movietone soundtrack with a musical score and sound effects.

Dance on Sunset: Dance on Sunset is a dance and music series hosted by Quddus (Benjamin Quddus Philippe) on Nickelodeon that featured dance routines, called the "Fresh-Squeezed Dance", designed to be performed by its pre-teen and teen-age viewers.  Choreographer Tony Testa and the show's dance troupe, the Nick 6, demonstrated each routine slowly, repeating it several times during the episode.  An "advanced" version of each routine was featured on the show's website.  Episodes featured musical guests, which included Akon, Natasha Bedingfield, Miranda Cosgrove, Fall Out Boy, Fergie, Janet Jackson, Sean Kingston, Lil' Mama, Jesse McCartney, Menudo, Omarion, Panic!  at the Disco and Ashlee Simpson, as well as dancing by a studio audience.  The show premiered March 29, 2008, immediately after the 2008 Kids' Choice Awards.

Beverly Garland: Beverly Garland (October 17, 1926 – December 5, 2008) was an American film and television actress, businesswoman, and hotel owner.  Her work in feature films primarily consisted of small parts in a few major productions or leads in low-budget action or science fiction movies.  She may be best remembered as Barbara Harper Douglas, the woman who married widower Steve Douglas (Fred MacMurray) in the latter years of the sitcom "My Three Sons".  She played that role from 1969 until the series ended in 1972.  In the 1980s, she co-starred as Kate Jackson's widowed mother, Dotty West, in the CBS television series "Scarecrow and Mrs. King".  She had a recurring role as Ginger Jackson on "7th Heaven".

Ashlee Simpson: Ashley Nicolle Ross (née Simpson; born October 3, 1984), known by the stage name Ashlee Simpson, is an American singer-songwriter and actress.  The younger sister of pop singer and actress Jessica Simpson, Ashlee began appearing in television commercials at the age of 15.  She later pursued a career as an actress, and had a recurring role on the family drama "7th Heaven".  Her breakout came following her appearance on the reality show "" (2003–05), which focused on her sister Jessica and her then-husband Nick Lachey.  While working on her debut studio album, Simpson became the star of her own spin-off reality series, "The Ashlee Simpson Show" (2004–05).  The show became a ratings hit, and earned Simpson widespread recognition.  Like her sister before her, Simpson became the center of considerable media attention, much of which focused on her relationship with musician Ryan Cabrera.

Keith Semple: Keith Semple (born 20 September 1981 in Larne, Northern Ireland) is a Northern Irish singer and musician.  He originally had his own band Keith Semple Band.  In 2002, he took part and was a winner in "Popstars: The Rivals", consequently becoming a member of the boyband One True Voice (OTV).  After the split-up of the band, he had a solo career before joining the American Chicago-based rock band 7th Heaven in 2006 as their lead singer.  In 2010, he took a shot at the ninth season of "American Idol", but lost his "golden ticket" place due to his legal status and residency considerations.  In October 2012, Keith announced he would be leaving 7th Heaven to pursue his original music and announced the formation of his new band, SEMPLE.  In September 2015, Keith auditioned for Season 9 of "The Voice" as part of Team Adam.  He was eliminated from competition after the Top 24 round.

Chaz Lamar Shepherd: Chaz Lamar Shepard (born October 26, 1977) is an American actor and singer-songwriter.  Shepard is known for his regular role as John Hamilton on "7th Heaven" and his recurring role as Trey Wiggs on "The Game".  From 1994-1995, he is also best known for his role as Artis Tower, son of Steve Tower (Steve Harvey) on "Me and the Boys" for ABC.  In addition, he starred as Curtis Taylor, Jr. in a 2009-10 national tour of the musical "Dreamgirls".  Most recently starred as a local pastor in Haters Back Off!  A Netflix original series based on YouTube sensation Miranda Sings.

Jason Behr: Jason Behr (born December 30, 1973 ) is an American film and television actor.  He first starred in the American television series "Roswell", for which he was twice nominated for a Saturn Award, followed by roles in the films "The Shipping News" and the American remake of the Japanese horror film "The Grudge".  Behr has also had a series of guest appearances in various television shows like "Step by Step", "The Profiler", "7th Heaven", "Buffy the Vampire Slayer", "JAG" and had a recurring role in the American television series "Dawson's Creek".

Supporting paragraphs: Dance on Sunset Ashlee Simpson
Answer: Ashlee Simpson