Question: How many sales are required to get the certification from the RIAA that Enjoy Yourself recieved in 1989? Passage 1:For 1970, Matra insisted on using their own V12 engines, while Tyrrell and Stewart wanted to continue with the Cosworth and maintain their connection to Ford, which conflicted with Matra's recent connections to Chrysler. Tyrrell decided to build his own car and in the interim bought a chassis from March Engineering; Stewart took the March 701-Cosworth to wins at the Daily Mail Race of Champions and Jarama, but development on the car stalled and it was soon overcome by the Lotus team's new 72. The new Tyrrell 001-Cosworth, appeared in August and suffered problems but showed promise. Tyrrell continued to be sponsored by French fuel company Elf, and Stewart raced in a car painted French Racing Blue for many years. Stewart also continued to race sporadically in Formula Two, winning at Crystal Palace and placing at Thruxton. A projected Le Mans appearance, to co-drive the 4.5 litre Porsche 917K with Steve McQueen, did not come off, due to McQueen's inability to get insurance. He also had a one-off race in Can-Am, in the revolutionary Chaparral 2J. Stewart qualified third, in what was the car's first outing, but brake failure ended his race.
 Passage 2:"Enjoy Yourself" is a song recorded by The Jacksons and released as a single in 1976. Featuring Michael and Jackie Jackson on lead vocals, it was the first non-Motown single for the group since they departed from the label earlier that year. The song peaked at #6 on the Billboard Hot 100 chart on February 19, 1977. On other US charts, "Enjoy Yourself" peaked at #2 on the Hot Soul Singles chart, and #33 on the National Disco Action Top 40 chart. On February 14, 1989, it became the group's first single to be certified Platinum by the RIAA. It was also the group's first song to feature new member Randy Jackson, who replaced Jermaine when he decided to stay at Motown after his brothers left. The song is sampled on the track "Let's Have a Party" by the Backstreet Boys, which appears on their 1996 self-titled debut album. The song is credited to Philadelphia songwriters/producers Gamble and Huff; however, a session musician from Gamble and Huff’s in-house band recalled that the late guitarist T.J. Tindall wrote the riff that was the initial spark for the song.
 Passage 3:Williams quickly reloaded the team with top talent, bringing in recruits like Brandan Wright, Ty Lawson, Wayne Ellington and Deon Thompson. The 2006–07 team tied as ACC regular season champions, earning the tiebreak over the Virginia Cavaliers. With the #1 seed, the Tar Heels won the ACC Tournament. After earning a #1 seed in the East Region in the 2007 NCAA Tournament, Williams' team won its first-round game against Eastern Kentucky Colonels 86–65 and its second against Michigan State 81–67. North Carolina then defeated the USC Trojans 74–64 to advance to the Elite Eight. On March 24, 2007, North Carolina fell to the Georgetown Hoyas in overtime in the East Regional, ending its post-season run. Following the 2006–2007 season, Williams announced on July 18, 2007, that he had vertigo, a condition that occasionally forces him to sit down suddenly during games.

Output: 2