Question: Stevie Nicks and Tairrie B, are Americans of which musical occupation?

full_context: Document 1: Starrah: Brittany Talia Hazzard (born June 14, 1990), professionally known as Starrah, is an American songwriter, singer and rapper. She co-wrote songs such as Rihanna's "Needed Me," Kevin Gates' "2 Phones," Dreezy's "Body," Kid Ink's "Be Real," Katy Perry's "Swish Swish", Nicki Minaj, Drake and Lil Wayne's No Frauds and Jeremih's "Pass Dat", as well studio albums like Travis Scott's "Birds in the Trap Sing McKnight" and 5 songs on Calvin Harris Funk Wav bounces Vol 1 including "Feels" featuring Pharrell Williams, Katy Perry and Big Sean. The demos of a few songs she co-wrote, featuring Starrah singing instead of the intended artist, have leaked, including her versions of "Pick Up the Phone", "Infinite Stripes" and "Trust Nobody".
Document 2: Tionne Watkins: Tionne Tenese Watkins (born April 26, 1970), better known by her stage name T-Boz, is an American singer, songwriter, actress, author, and executive producer. Born in Des Moines, Iowa, Watkins rose to fame in the early 1990s as a member of the girl-group TLC. She has won four Grammy Awards for her work with TLC.
Document 3: Wanda Jackson: Wanda Lavonne Jackson (born October 20, 1937) is an American singer, songwriter, pianist and guitarist who had success in the mid-1950s and 1960s as one of the first popular female rockabilly singers and a pioneering rock-and-roll artist. She is known to many as the "Queen of Rockabilly" or the "First Lady of Rockabilly".
Document 4: Mashonda: Mashonda Tifrere (born January 9, 1979), is an American R&B recording artist from Harlem, New York City, New York. Tifrere has appeared on several songs from hip hop artists in the early 2000s. In 2003, she married American record producer Swizz Beatz and was once signed to their label Full Surface, under the aegis of J Records. Tifrere released her debut studio album "January Joy", in 2005. Tifrere was also a part of the VH1 reality show "", for the first season. She also is the author of "Pandora’s Box", a column on "VIBE Vixen".
Document 5: Crystal Visions – The Very Best of Stevie Nicks: Crystal Visions... The Very Best of Stevie Nicks is a compilation album released by the American singer-songwriter and Fleetwood Mac vocalist Stevie Nicks. It features songs from her solo career, as well as her career with Fleetwood Mac. It includes her hit singles, a dance remix, and one new track, a live version of Led Zeppelin's "Rock and Roll". Three singles were culled from the album: "Rock and Roll", "Landslide", and a remixed version of "Stand Back". There are two versions of this album, one with just the audio CD and another version with an included DVD featuring all of Nicks' music videos with audio commentary from Nicks, as well as rare footage from the "Bella Donna" recording sessions. The album debuted and peaked at #21 in the US selling 33,944 copies in its first week. The album spent a total of 12 weeks on the "Billboard" 200 chart, and had sold 505,000 copies as of April 2014. The album is certified gold in Australia and Silver in the UK.
Document 6: Stevie Nicks: Stephanie Lynn Nicks (born May 26, 1948) is an American singer-songwriter who is often referred to as the Queen of Rock and Roll.
Document 7: Grace Slick: Grace Barnett Slick (born October 30, 1939) is an American singer-songwriter, musician, artist, and former model, widely known in rock and roll history for her role in San Francisco's burgeoning psychedelic music scene in the mid–1960s. Her music career spanned four decades, and involved the Great Society, Jefferson Airplane, Jefferson Starship, and Starship, as well as a sporadic solo career. Slick provided vocals on a number of iconic songs, including "Somebody to Love", "White Rabbit", "We Built This City" and "Nothing's Gonna Stop Us Now".
Document 8: Sandy Stewart (musician): Sandy Stewart (born on January 13, 1958 in San Francisco) is a songwriter, singer and keyboardist from Houston, Texas, USA. She is mostly known for her album "Cat Dancer", and her association with Fleetwood Mac vocalist and solo act Stevie Nicks. Sandy's first single, "Saddest Victory" was released in 1983. Its video played on MTV for several weeks, but the song never charted. Sandy and Stevie Nicks also sang a duet for the song "I Pretend", which also was featured on "Cat Dancer". A 12" single was also released to promote "Cat Dancer". The single featured a large close-up photo of Sandy on its album cover.
Document 9: Beauty and the Beast (Stevie Nicks song): "Beauty and the Beast" is a song by the American singer-songwriter Stevie Nicks. It is the final track on her second album "The Wild Heart", released in 1983. It was later released in a live version from Nicks 1986 "Rock a Little" tour as a B-side to the UK single "Whole Lotta Trouble" in October 1989. It also appears on two compilations: "Timespace – The Best of Stevie Nicks", released in 1991, and the boxset, "Enchanted", released in 1998. A new studio version appears on her album, "The Soundstage Sessions", released in 2009.
Document 10: The Wild Heart Tour: The Wild Heart Tour was a North America-only solo concert tour by Fleetwood Mac vocalist Stevie Nicks in support of her second studio album "The Wild Heart". The tour began on May 27, 1983, in Las Vegas, Nevada and ended on November 24, 1983, in Columbia, South Carolina. Three weeks before the tour, Stevie performed on “Rock Day” at the US Festival in San Bernardino, California. Approximately 670,000 people attended the four-day music festival.
Document 11: Cher: Cher ( ; born Cherilyn Sarkisian; May 20, 1946) is an American singer and actress. Sometimes referred to as the Goddess of Pop, she has been described as embodying female autonomy in a male-dominated industry. She is known for her distinctive contralto singing voice and for having worked in numerous areas of entertainment, as well as adopting a variety of styles and appearances during her five-decade-long career.
Document 12: Power of a Woman (Tairrie B album): Power of a Woman is the debut album by white female rapper, Tairrie B. The album was released in 1990 for Ruthless Records and distributed through MCA Records and was mostly produced by Tairrie B, with guest stars such as Schoolly D, Bilal Bashir & Greg Kuehn lending their talents to more than a few tracks. Despite gaining rather favorable reviews, it did not manage to chart on Billboard; however, two singles ("Murder She Wrote" & "Swingin' Wit' T) placed themselves at numbers 27 & 28 respectively, on the Hot Rap Singles chart.
Document 13: Tairrie B: Tairrie B (born Theresa Beth; January 18, 1965 in Anaheim, California) is an American singer and rapper.
Document 14: Tera Wray: Tera Wray (born Tera Elizabeth Lents; April 14, 1982 – January 13, 2016) was a pornographic actress, originally from Louisville, Kentucky. Her stage name is derived from her real first name, Tera, and her best friend's middle name, Wray.
Document 15: Vintage Curses: Vintage Curses is the third studio album by American rapper Tairrie B, released August 14, 2015 as a free download via her official bandcamp page. The album marked her return to rap music after a hiatus of more than 20 years spent fronting heavy metal bands Tura Satana, Manhole and My Ruin.
ground_truth: singer