Question: Whom has performed in more bands, Randy Blythe or Sharleen Spiteri? 

Context paragraphs:
All the Times I Cried: "All the Times I Cried" is the debut solo single by Texas lead singer, Sharleen Spiteri, from her debut solo album, "Melody".  It was digitally released in the U.K. on June 30, 2008, and physically released on July 7, 2008.  It was taken from The Shangri Las song 'Out In The Streets'.

It Was You: "It Was You" is the third single released off Sharleen Spiteri's first solo album "Melody".  It was originally rumoured to be the second single due to it being on the albums sticker but it turned out to be "Stop, I Don't Love You Anymore", it was later announced to be the third single on Sharleen Spiteri's official website, it was released as digital download on December 1, 2008, following the single "Stop, I Don't Love You Anymore".

Randy Blythe: David Randall "Randy" Blythe (born February 21, 1971), is an American singer, best known as the vocalist and lyricist of American heavy metal band Lamb of God.  He has also performed guest vocals for Cannabis Corpse, Overkill and Gojira, and he is the lead singer of side-project band Halo of Locusts.  As a teenager, he looked up to bands of the hardcore punk scene such as the Sex Pistols, Bad Brains, and Black Flag.

Texas (band): Texas are a Scottish pop rock band from Glasgow.  They were founded in 1986 by Johnny McElhone (formerly of the bands Altered Images and Hipsway) and Sharleen Spiteri on lead vocals.  Texas made their performing debut in March 1988 at the University of Dundee.  They took their name from the 1984 Wim Wenders movie "Paris, Texas".

Stop, I Don't Love You Anymore: "Stop I Don't Love You Anymore" is the second single from Sharleen Spiteri's first solo album "Melody".  It was slated for a September 29, 2008 release, but then for unknown reasons it was pushed back and finally got released on October 6, 2008 as a digital download only single.  This song failed to chart inside the top 100 UK singles, peaking only at #107.

Sharleen Spiteri: Sharleen Eugene Spiteri (born 7 November 1967) is a Scottish recording artist and songwriter from Finnieston, Glasgow, Scotland, and the lead singer of the rock band Texas.  In 2013, Texas's worldwide album sales were counted at 40 million.

The Movie Songbook: The Movie Songbook is the second studio album by Scottish singer-songwriter Sharleen Spiteri.  It was released on 1 March 2010.  The album consists of film song covers, chosen and recorded by Spiteri in 2009.

Randy Blythe manslaughter case: The Randy Blythe manslaughter case was a court case in the Czech Republic, stemming from a 2010 Lamb of God concert in Prague, wherein 19-year-old fan Daniel Nosek sustained head injuries leading to a coma and subsequent death.  During the investigation, Czech police unsuccessfully asked United States authorities for cooperation.  When the band returned to the Czech Republic for another concert two years later, its vocalist Randy Blythe was arrested, charged with causing Nosek's death, and remanded in custody for five weeks.

Sharleen Spiteri discography: This is the discography for Scottish alternative rock singer, Sharleen Spiteri.  For her work within the Scottish rock band Texas, see Texas discography.  Her debut solo album "Melody" was released in 2008 and charted at number 3 on the UK Albums Chart.  Her second solo album, "The Movie Songbook", was released on 1 March 2010.

First Contact (album): First Contact is the debut studio album by American house producer Roger Sanchez, released in July 2001 by Defected Records.  After establishing himself as a popular DJ and remixer throughout the 1990s, Sanchez decided he wanted to create more of his own music and record a studio album, feeling he had "a bit of a story to tell with [his life]," and conceived the album to be a very personal "reflection of his life", recording the album from 1997–2001.  Music critics have described "First Contact" as a disco house album which displays a disparate array of influences and styles, including garage, Latin and electro.  Numerous guest vocalists, including Cooly's Hot Box, N'Dea Davenport and Sharleen Spiteri, contribute vocals to the album.

Supporting paragraphs: Randy Blythe Sharleen Spiteri
Answer: David Randall "Randy" Blythe