Question: Who performed the theme song of the American television sitcom in which Matt Shively played the role of Ryan Laserbeam?
Context: Dawnn Lewis (born August 13, 1961) is an American actress and singer.  She is best known for her roles as Jaleesa Vinson–Taylor on the NBC television sitcom "A Different World" (1987–92), for which she co–wrote the theme song; as Robin Dumars on the ABC sitcom "Hangin' With Mr. Cooper" for its first season (1992–93); and as Cheryl Spade in the 1988 film "I'm Gonna Git You Sucka".  Since then, Lewis has appeared in numerous TV series, including other sitcoms, and has also performed on stage and done voice-over work. Here and Now is an American television sitcom that aired on NBC from September 19, 1992 to January 2, 1993.  The series starred Malcolm-Jamal Warner in the lead role, who prior to this series co-starred in "The Cosby Show" which ended its run in April 1992.  Bill Cosby served as one on the show's executive producers along with Warner serving as executive consultant credited as M.J. Warner.  The song "Tennessee" by Arrested Development was used as the show's theme song. Matthew James Shively, Jr. (born September 15, 1990) is an American actor best known for his role as Ryan Laserbeam on the Nickelodeon television series "True Jackson, VP".  Beginning in June 2011, he began appearing in the Nickelodeon series "The Troop" as Kirby.  He co-starred in the ABC television program "The Real O'Neals" which debuted on March 8, 2016. Rage of Bahamut (神撃のバハムート , Shingeki no Bahamut ) is a Japanese anime television series produced by MAPPA that is based on the "Rage of Bahamut" game.  The anime aired between October 6, 2014 and December 29, 2014 for 12 episodes.  On May 6, 2015, a second season was announced at the series' orchestra concert event.  Titled Rage of Bahamut: Virgin Soul (神撃のバハムート VIRGIN SOUL , Shingeki no Bahamut: Virgin Soul ) , it premiered on April 7, 2017.  The opening theme song "EXiSTENCE" is performed by SiM, while the ending theme song "Promised Land" is performed by Risa Shimizu.  For season 2, the first opening theme song is "LET iT END" by SiM while the first ending theme song is "Haikei Goodbye Sayonara" (拝啓グッバイさようなら , lit.  Greetings, Goodbye, Farewell) by DAOKO.  The second opening theme is "Walk This Way" by THE BEAT GARDEN, while the second ending theme is "Cinderella Step" by DAOKO. Drake & Josh is an American television sitcom created by Dan Schneider for Nickelodeon.  The series follows the lives of two teenage boys with opposite personalities, Drake Parker (Drake Bell) and Josh Nichols (Josh Peck), who become stepbrothers.  Both actors previously appeared in "The Amanda Show" along with Nancy Sullivan, who plays Drake and Megan's mother in the series.  Miranda Cosgrove plays Megan, Drake's mischievous younger sister, and Jonathan Goldstein plays Walter, Josh's father.  The series' opening theme song, "Found a Way", is written by Drake Bell and Backhouse Mike and performed by Bell.  The series ran from January 11, 2004, to September 16, 2007, totaling 57 episodes in 4 seasons.  It also had two TV films: "Drake & Josh Go Hollywood" and "Merry Christmas, Drake & Josh". The Dick Van Dyke Show is an American television sitcom that initially aired on CBS from October 3, 1961 to June 1, 1966, with a total of 158 half-hour episodes spanning over five seasons.  The show was created by Carl Reiner and starred Dick Van Dyke, Rose Marie, Morey Amsterdam, Larry Mathews, and Mary Tyler Moore.  It centered on the work and home life of television comedy writer Rob Petrie (Van Dyke).  The show was produced by Reiner with Bill Persky and Sam Denoff.  The music for the show's theme song was written by Earle Hagen. "Come On Down" is a 2001 single recorded by Crystal Waters, produced by Orlando Ortiz and co-written with Waters and Robert A. Israel.  The track, her first release for Strictly Rhythm Records, samples the theme song to the American game show "The Price Is Right", whose music was written and produced by Israel for his in-house company Score Productions.  The show's parent company Pearson Television (now part of FremantleMedia) gave its blessing to let Waters use the theme song, and as such received publishing rights and credits on the song.  The single also marked the first time that lyrics were added to "The Price Is Right" theme song and the first song based on a television theme song (and the first to come from a game show) to reach number 1 on the "Billboard" Hot Dance Club Play Chart the week of December 29, 2001. True Jackson, VP is an American television sitcom that aired on Nickelodeon from November 8, 2008 to August 20, 2011.  The series starred Keke Palmer, Ashley Argota, Matt Shively, Danielle Bisutti, Greg Proops, Robbie Amell, and Ron Butler.  The theme song was written by Toby Gad and Keke Palmer and is performed by Palmer.  The series was shot in front of a live studio audience, which is mentioned at the start of each episode (with the exception of the episode "Mission Gone Bad").  On May 5, 2009, Nickelodeon renewed the show for a second season of 34 episodes, which premiered on November 14, 2009.  In 2010, Nickelodeon cancelled the show after two seasons.  It was then later split, making a third season.  The pilot episode garnered 4.8 million viewers on its first airing and set network records among kids 6–11, adolescents 9–14 and several other demos, airing after the "iCarly" three-part episode "iGo to Japan".  The show premiered on Nickelodeon (UK and Ireland) on May 25, 2009 and on Nickelodeon (Latin America) on August 3, 2009.  The one-hour (two-part) episode entitled "Mystery in Peru" completed the 34 ordered episodes for season two (production wise), after it aired on August 20, 2011.  Keke Palmer posted a video on her YouTube account and posted on her blog, confirming that "Mystery in Peru" is the series' finale. Ask Harriet is an American television sitcom that ran for one season in 1998 on FOX.  "Ask Harriet" was created by David Cassidy, Jonathan Prince, and Billy Riback.  Cassidy also wrote and performed the theme song. Expelled is an American teen comedy feature-length film, written and directed by Alex Goyette.  The film stars Cameron Dallas, Matt Shively, Lia Marie Johnson, Marcus Johns, Andrea Russett, Kristina Hayes and Teala Dunn.  Majority of the cast are popular online internet personalities.  The film was released in a limited release on December 12, 2014 before being released on video on demand December 16, 2014 by 20th Century Fox.
Answer: Keke Palmer