Question: Which musician or musical group became popular after appearing on a talent reality show, Vanessa Petruo or Clap Your Hands Say Yeah?

Context paragraphs:
Wichita Recordings: Wichita Recordings is an independent record label located in London, founded in 2000 by Mark Bowen and Dick Green.  Its most notable signees include Bloc Party, The Cribs, Clap Your Hands Say Yeah, Bright Eyes, My Morning Jacket, Yeah Yeah Yeahs, Best Coast, Los Campesinos!  and Peter Bjorn and John.  The label signed Clap Your Hands Say Yeah for a UK distribution deal for the group's debut album.  They also signed the UK producers Simian Mobile Disco for the UK.

Vanessa Petruo: Vanessa Anneliese Petruo (born 23 October 1979), also known as Vany, is a German singer–songwriter and actress.  She came to international prominence as a member of the all–female pop band No Angels, that was created during the talents show "Popstars".  The band enjoyed a great popularity throughout Central Europe, following their record–breaking debut single "Daylight in Your Eyes" and the album "Elle'ments".  From 2001 to 2003, No Angels sold more than 5 million units.  After their disbandment in 2003, Petruo launched her solo career.

Clap Your Hands Say Yeah: Clap Your Hands Say Yeah (often abbreviated CYHSY) is the musical project of American indie rock musician Alec Ounsworth.  The group was founded in 2004 and is based in Philadelphia, Pennsylvania, and Brooklyn, New York.  Until 2014, the project operated as a band with drummer Sean Greenhalgh being a member for its entirety.  Keyboardist/guitarist Robbie Guertin and brothers Lee (guitar/vocals) and Tyler (bass) Sargent were also a part of the band from its inception until their collective departure in 2012.  Their debut album, "Clap Your Hands Say Yeah", was self-released in 2005.

Sean Greenhalgh (musician): Sean Greenhalgh is a music producer and multi-instrumentalist best known as the drummer in the band Clap Your Hands Say Yeah.  Sean is featured in "The Warhol Economy: How Fashion Art & Music Drive New York City" in regard to Clap Your Hands Say Yeah's rise to blog fame in 2005.

Clap Your Hands Say Yeah (album): Clap Your Hands Say Yeah is the eponymous debut album by Clap Your Hands Say Yeah, self-released in the U.S. on 13 September 2005, and released in the UK on 23 January 2006 by Wichita Recordings.  Produced and mixed by Adam Lasus, the album and the band rose to fame after buzz and attention built up on various MP3 blogs and a very positive ("9.0/10") review from influential music website "Pitchfork".  "Clap Your Hands Say Yeah" was listed as one of the 50 most important recordings of the decade by National Public Radio's "All Songs Considered".

Alec Ounsworth: Alec Ounsworth (born December 1, 1977) is an American singer, songwriter, guitarist and frontman of indie rock band Clap Your Hands Say Yeah.  He is also a member of The Pelican Picnic and Flashy Python.  Alec's first solo album, "Mo Beauty" was released October 20, 2009, on Anti- Records.

Dave Fridmann: David Lawrence "Dave" Fridmann is an American record producer and musician.  From 1990 onwards he co-produced most releases by Mercury Rev and The Flaming Lips.  Other bands he has worked with include Weezer, Saxon Shore, Neon Indian, Wolf Gang, Ammonia, Ed Harcourt, Sparklehorse, Café Tacuba, Elf Power, Mogwai, Thursday, Mass of the Fermenting Dregs, The Delgados, Low, Phantom Planet, Gemma Hayes, Goldrush, Tapes 'n Tapes, Hopewell, Black Moth Super Rainbow, Number Girl, Jed Davis, Zazen Boys, Sleater-Kinney and Clap Your Hands Say Yeah.  He has recently worked on new recordings with MGMT, Neil Finn, The Cribs, OK Go, Tame Impala, Baroness and Spoon.

Sherri Wood: Sherri Wood (1979 – March 24, 2008) was a Canadian journalist for the "Toronto Sun".  An Etobicoke, Ontario native, Wood worked for the Sun since 2004 as an entertainment reporter and critic.  She also had a weekly spot on Canoe Live, SUN TV's current-affairs show.  The last story Wood wrote for the Sun was on April 15, 2007, a review of a concert by Brooklyn indie-rock troupe Clap Your Hands Say Yeah.  Within hours of filing, she collapsed suddenly and was rushed to hospital.

Union Transfer: Union Transfer is an independently owned and operated music venue in Philadelphia, Pennsylvania; a joint venture between R5 Productions, and The Bowery Presents (Terminal 5, Bowery Ballroom).  The venue opened to the public September 21, 2011 with the first ever show by Clap Your Hands Say Yeah and Poliça.

Goodbye Cool World!: Goodbye Cool World!  is the third release by DIY collective Bomb the Music Industry! .  It was released on the band’s website, as well as on a limited vinyl release.  The album’s working title was reported to be "Clap Your Hands Say Shut the Fuck Up", parodying indie rock band Clap Your Hands Say Yeah, but was changed to the current title because, according to Bomb the Music Industry! , "A band selling 50,000 records without a label, regardless of hype or bad music, is kinda dope."

Supporting paragraphs: Vanessa Petruo Clap Your Hands Say Yeah
Answer: Vanessa Anneliese Petruo