Please answer the following question: Information: - "Grillz" is a song by American rapper Nelly from his compilation album "Sweatsuit". The song features Paul Wall and Ali & Gipp. Brandi Williams also does back-up vocals on the song, but is not officially credited as a featured artist (but does appear in the video). The song was produced by Jermaine Dupri. The song is about grills, the cosmetic dental apparatuses. It samples the 2004 hit "Soldier" by Destiny's Child. Rappers Big Boi and Iamsu! makes a cameo appearance in the music video. - Destiny's Child was an American girl group whose final and best-known line-up comprised Beyonce Knowles, Kelly Rowland, and Michelle Williams. Formed in 1997 in Houston, Texas, Destiny's Child members began their musical endeavors as Girl's Tyme comprising, formed in 1990, among others, Knowles, Rowland, LaTavia Roberson and LeToya Luckett. After years of limited success, they were signed in 1997 to Columbia Records and Music World Entertainment as Destiny's Child. Destiny's Child was launched into mainstream recognition following the 1999 release of their best-selling second album, "The Writing's on the Wall", which contained the number-one singles "Bills, Bills, Bills" and "Say My Name". Despite critical and commercial success, the group was plagued by internal conflict and legal turmoil, as Roberson and Luckett attempted to split from the group's manager Mathew Knowles, citing favoritism of Knowles and Rowland. - "Run It!" is the debut single recorded by American recording artist Chris Brown. It was written and produced by Scott Storch and Sean Garrett for his debut studio album, "Chris Brown" (2005). It features rap verses from American rapper Juelz Santana. The song was released as a single on June 30, 2005. The remix features rappers "Bow Wow" and "Jermaine Dupri" and was performed at The 2006 "Nickelodeon Kids Choice Awards" by Bow Wow and Chris Brown. The radio version of the song was featured on the 2006 compilation album "Now That's What I Call Music! 21". - Now That 's What I Call Music ! 21 was released on April 4 , 2006 . The album is the 21st edition of the ( U.S. ) Now ! series . The album peaked at number two on the Billboard 200 and has been certified Platinum . It features three Billboard Hot 100 number - one hits : '' Do n't Forget About Us '' , '' Grillz '' and '' Run It ! '' . - Garrett Hamler (born March 30, 1979), better known by his stage name Sean Garrett, is an American singer, songwriter and record producer. He has produced eighteen number one singles in only seven years of producing music. That number puts him in fifth place on the "Billboard" list of producers with the most number one hits. Garrett is the first producer to achieve this measure of success in under a decade since George Martin, who produced 20 number one hits for The Beatles in 6 1/2 years from 1964 to 1970. He is also the only active hip hop producer that is mentioned on the Billboard list of producers with the most number one hits. - Brandi Danielle Williams (born October 5, 1982) is an American actress, Singer, songwriter, and dancer. She is most notable for singing in the R&B trio Blaque. - Paul Michael Slayton (born March 11, 1981), better known by his stage name Paul Wall, is an American rapper from Houston, Texas. He is affiliated with Swishahouse Records. He has released several albums under the label and collaborating with other rappers signed to the label. He was musical partners with rapper Chamillionaire with whom he released several albums including the independently released "Get Ya Mind Correct". In 2005, he was signed to Atlantic Records and became successful with his major-label debut "The Peoples Champ". "Get Money, Stay True" followed in 2007. - LaRon Louis James (born February 18, 1982), better known by his stage name Juelz Santana, is an American rapper and actor. He is from the Harlem neighborhood in New York City, and is member of East Coast hip hop group The Diplomats. He appeared on Cam'ron's 2002 singles, "Oh Boy" and "Hey Ma". In 2003, his debut album "From Me to U" was released by Roc-A-Fella Records; his next album "What the Game's Been Missing!" contained the top-ten single "There It Go (The Whistle Song)". He is currently working on his third studio album "Born to Lose, Built to Win". - Jermaine Dupri Mauldin (born September 23, 1972), known as Jermaine Dupri or JD, is an American hip hop recording artist, record producer, songwriter and rapper. He was born in Asheville, NC and was raised in Atlanta, Georgia. He has worked with and produced Mariah Carey, Usher, Jay-Z, Nelly, Monica, Da Brat, Xscape, Janet Jackson, TLC, Aretha Franklin, Ludacris, Alicia Keys, Bow Wow, Miss Mulatto, and most recently The Rap Game season 2 winner, Mani. - Cornell Iral Haynes, Jr. (born November 2, 1974), known professionally as Nelly, is an American rapper, singer, songwriter, entrepreneur, investor, and occasional actor from St. Louis, Missouri. Nelly embarked on his music career with Midwest hip hop group St. Lunatics, in 1993 and signed to Universal Records in 1999. Under Universal, Nelly began his solo career in the year 2000, with his debut album "Country Grammar", of which the title-track was a top ten hit. The album debuted at number three on the "Billboard" 200 and went on to peak at number one. "Country Grammar" is Nelly's best-selling album to date, selling over 8.4 million copies in the United States. His following album "Nellyville", produced the number-one hits "Hot in Herre" and "Dilemma" (featuring Kelly Rowland). Other singles included "Work It" (featuring Justin Timberlake), "Air Force Ones" (featuring Murphy Lee and St. Lunatics), "Pimp Juice" and "#1". - Christopher Maurice "Chris" Brown (born May 5, 1989) is an American singer, songwriter, rapper, dancer, and actor. Born in Tappahannock, Virginia, he was involved in his church choir and several local talent shows from a young age. Having signed with Jive Records in 2004, Brown released his self-titled debut studio album the following year. It peaked at number two on the US "Billboard" 200 and was later certified double platinum by the Recording Industry Association of America (RIAA), selling an overall three million copies worldwide. With his first single "Run It!" peaking atop the US "Billboard" Hot 100, Brown became the first male artist as a lead since Diddy in 1997 to have his debut single top the chart. His second album "Exclusive" (2007) spawned his second Hot 100 number one "Kiss Kiss", in addition to "With You" and "Forever". The album was also certified double platinum by the RIAA. In addition to his solo commercial success, Brown has been featured on several singles such as "No Air", a duet with singer Jordin Sparks, "Shortie like Mine" with the rapper Bow Wow and "Shawty Get Loose" alongside Lil Mama and T-Pain. The songs have peaked at number three, number nine and number ten on the US "Billboard" Hot 100 respectively. - Scott Spencer Storch (born December 16, 1973) is a Canadian-born American record producer. Storch became one of the top producers in the music industry in the early 2000s, working with and producing hit records for artists such as Paris Hilton, Beyonce, Tupac Shakur, 50 Cent, The Game, T.I., Chris Brown, Christina Aguilera, Dr. Dre, Nas, Lil Wayne, Snoop Dogg, Jessica Simpson, Belly, Mya, and Pink. Given the information above, choose from the list below the object entity that exhibits the relation 'instance of' with the subject 'now that's what i call music! 21 '. Choices: - 1 - age - bow - boy - chart - child - choir - church - city - coast - compilation album - december - dilemma - entertainment - february - final - game - grammar - group - industry - june - label - line - list - march - may - mine - music - music video - name - neighborhood - nine - november - october - september - seven - single - soldier - song - studio - ten - three - title - trio - two - wall - writing
Answer:
compilation album