Question: Are both Stone Temple Pilots and Transvision Vamp considered American rock groups?

Context articles: The Nameless One (song)
Transvision Vamp
2008 Stone Temple Pilots Reunion Tour
The Family Values Tour 2001
Between the Lines (Stone Temple Pilots song)
Army of Anyone (album)
Stone Temple Pilots
Now Ain't the Time for Your Tears
Interstate Love Song
Stone Temple Pilots (album)

"The Nameless One" is the debut solo single from former Transvision Vamp lead singer Wendy James.
 It was released in the first quarter of 1993 as the lead single from James' debut solo album "Now Ain't the Time for Your Tears".
 Written by Elvis Costello, the song marked a more alternative direction in sound, slightly different from the pop/rock stylings of Transvision Vamp.
 The single met with limited success, only peaking at number thirty-four on the UK Singles Chart and spending just three weeks in the top one-hundred.
Transvision Vamp were a British alternative rock group.
 Formed in 1986 by Nick Christian Sayer and Wendy James, the band enjoyed chart success in the late 1980s with their pop/punk sound.
 James, the lead singer and focal-point of the group, attracted media attention with her sexually charged and rebellious image.
The 2008 Stone Temple Pilots Reunion Tour was a 75-date reunion tour for the popular American rock band Stone Temple Pilots, who originally disbanded in 2003.
 The tour, which kicked off on May 17, 2008 in Columbus, Ohio at the Rock on the Range festival, ran throughout the summer and ended on October 31 at the Verizon Wireless Center in Pelham, Alabama.
 The Stone Temple Pilots reunion tour was a success, receiving positive reviews from critics and fans alike as well as high ticket sales.
 At one point, the Stone Temple Pilots tour was ranked at #1 on Pollstar's "Top 50" list.
 According to "Rolling Stone", the band sold an average of $230,000 of tickets a night.
The Family Values Tour 2001 is the third live album with various artists performing on stage during "The Family Values Tour" in fall 2001.
 It is released on May 7, 2002.
 The album includes various artists performing at the "Family Values Tour" in 2001, such as Linkin Park, Staind, Deadsy, Stone Temple Pilots, Static-X, and Staind frontman Aaron Lewis.
 The hit song "Wonderful", the only single off the album, is performed live during the "Family Values 2001 Tour" by American rock band Stone Temple Pilots, which features additional vocals from Chester Bennington of Linkin Park who would eventually become the band's vocalist in 2013.
"Between the Lines" is the first single from the American rock band Stone Temple Pilots's sixth studio album, "Stone Temple Pilots".
 The single was released on March 22, 2010.
 The song set the record for largest positional gain on "Billboard"' s Rock Songs chart, jumping from number 40 to 2, later reaching number 1.
 "Between the Lines" was nominated for Best Hard Rock Performance at the 53rd Grammy Awards, an award the band previously won for "Plush" in 1994.
Army of Anyone is the debut studio album by Army of Anyone, an American rock band featuring Richard Patrick of Filter, Robert DeLeo and Dean DeLeo of Stone Temple Pilots, and Ray Luzier, prior drummer of David Lee Roth's band and current drummer of the nu metal band Korn.
 The album was released on November 14, 2006 in America, December 4, 2006 in the UK.
 It was produced by Bob Ezrin (Pink Floyd, Kiss, Alice Cooper) and mixed by Ken Andrews.
 Despite largely positive reviews from critics, the album sold well below the expectations set from Filter and Stone Temple Pilots past multi-platinum albums, stalling around 88,000 copies sold.
 The album produced two singles, "Goodbye" and "Father Figure", the former peaking at no. 3 on the U.S. Mainstream Rock chart.
Stone Temple Pilots (sometimes abbreviated as STP) is an American rock band from San Diego, California, that originally consisted of Scott Weiland (lead vocals), brothers Dean (guitar) and Robert DeLeo (bass, backing vocals), and Eric Kretz (drums).
 From the band's formation in 1989, its line-up remained unchanged until the firing of Weiland in 2013, who was replaced by Linkin Park vocalist Chester Bennington.
 In 2015, Bennington left the band to focus solely on Linkin Park.
 On December 3, 2015, Weiland was found dead on his tour bus before a performance with his band The Wildabouts.
 In 2016, the band launched an online audition for a new lead vocalist.
Now Ain't the Time for Your Tears is the debut solo album by former Transvision Vamp lead singer Wendy James.
 Released on 8 March 1993, two years after the Transvision Vamp disbandment, the album saw James maintain the pop/rock sound she had become famous for.
 "Now Ain't the Time for Your Tears" was written in its entirety by Elvis Costello, with several tracks co-written by his then wife Cait O'Riordan.
"Interstate Love Song" is a song by the American rock band Stone Temple Pilots.
 Released in 1994, the song is from the band's second studio album, "Purple".
 Considered to be one of the band's biggest hits, "Interstate Love Song" reached number one on the Mainstream Rock Tracks chart on September 17, 1994.
 The song it replaced at number one was "Vasoline", also by Stone Temple Pilots.
 The song stayed at number one for 15 weeks, a record at the time and "Vasoline" stayed at number one for 2 weeks giving STP 17 consecutive weeks at number one with both songs combined.
 The song also peaked number two on the Modern Rock Tracks chart where "Vasoline" also peaked at the same position spot before.
 In 2003, "Interstate Love Song" was featured on the greatest hits compilation "Thank You".
 In 2009, it was named the 58th best hard rock song of all time by VH1.
 The song was ranked at number 17 on Australian alternative music station Triple J's Hottest 100 countdown of 1994.
 In the UK, the song peaked at number 53.
 "Interstate Love Song" is praised as one of the best songs of the 1990s.
Stone Temple Pilots is the sixth studio album by American rock band Stone Temple Pilots.
 The album was released worldwide from May 21 through May 27, 2010, and is the band's first album since 2001's "Shangri-La Dee Da".
 The album is the result of the band's reunion, which occurred in April 2008 with their North American tour.
 After Stone Temple Pilots had begun playing together, the band decided to record again, but a lawsuit filed by Atlantic Records on June 12, 2008, made the sixth album an uncertainty.
 Atlantic eventually withdrew the lawsuit, and the band's attorney called the legal situation a "misunderstanding".
 This is the last album to feature vocalist Scott Weiland before he was fired from the band in 2013 and died in 2015.