Question:
REO Speedwagon (originally styled as R.E.O. Speedwagon) is an American rock band from Champaign, Illinois. Formed in 1967, the band cultivated a following during the 1970s and achieved significant commercial success throughout the 1980s. Hi Infidelity (1980) contained four US Top 40 hits and is the group's best-selling album, with over ten million copies sold. Over the course of its career, the band has sold more than 40 million records and has charted thirteen Top 40 hits, including the number ones "
The stage was now set for the height of the band's popularity. On November 21, 1980, REO Speedwagon released Hi Infidelity, which represented a change in sound, going from hard rock to more pop-oriented material. Hi Infidelity spawned four hit singles written by Richrath and Cronin, including the chart-topping "Keep On Loving You" (Cronin), plus "Take It on the Run" (#5) (Richrath), "In Your Letter" (#20) (Richrath), and "Don't Let Him Go" (#24) (Cronin), and remained on the charts for 65 weeks, 32 of which were spent in the top ten, including 15 weeks atop the Billboard 200. Hi Infidelity sold over 10 million copies and set the bar for rock bands across the country. The band's follow-up album, Good Trouble, was released in 1982. Although it was not as successful as its predecessor, the album performed moderately well commercially, featuring the hit singles "Keep the Fire Burnin'" (U.S. #7), "Sweet Time" (U.S. #26) and the Album Rock chart hit "The Key." The band came storming back two years later with Wheels Are Turnin', an album that included the #1 hit single "Can't Fight This Feeling" plus three more hits: "I Do' Wanna Know" (U.S. #29), "One Lonely Night" (U.S. #19), and "Live Every Moment" (U.S. #34). REO Speedwagon toured the US in 1985, including a sold-out concert in Madison, Wisconsin in May. On July 13, on the way to a show in Milwaukee, the band made a stop in Philadelphia to play at the US leg of Live Aid, which broke a record for number of viewers. They performed "Can't Fight This Feeling" and "Roll With the Changes," which featured members of the Beach Boys, the band members' families, and Paul Shaffer on stage for backing vocals. 1987's Life as We Know It saw a decline in sales, but still managed to provide the band with the top-20 hits "That Ain't Love" (U.S. #16) and "In My Dreams" (U.S. #19). The Hits (1988) is a compilation album from REO Speedwagon. It contains new tracks "Here With Me" and "I Don't Want to Lose You." "Here with Me" cracked the top 20 on the Billboard Hot 100 and the top ten on the Adult Contemporary chart. They were the last songs recorded with Gary Richrath and Alan Gratzer
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Major achievements during this period?

Answer:
On November 21, 1980, REO Speedwagon released Hi Infidelity, which represented a change in sound, going from hard rock to more pop-oriented material.

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Britney Jean Spears (born December 2, 1981) is an American singer, dancer, and actress. Born in McComb, Mississippi, and raised in Kentwood, Louisiana, she performed acting roles in stage productions and television shows as a child before signing with Jive Records in 1997. Spears's first and second studio albums, ...Baby One
In February 2001, Spears signed a $7-8 million promotional deal with Pepsi, and released another book co-written with her mother, titled A Mother's Gift. Her self-titled third studio album, Britney, was released in November 2001. While on tour, she felt inspired by hip hop artists such as Jay-Z and The Neptunes and wanted to create a record with a funkier sound. The album debuted at number one in the Billboard 200 and reached top five positions in Australia, the United Kingdom and mainland Europe and sold over 12 million copies worldwide. Stephen Thomas Erlewine of AllMusic called Britney "the record where she strives to deepen her persona, making it more adult while still recognizably Britney. [...] It does sound like the work of a star who has now found and refined her voice, resulting in her best record yet." The album was honored with two Grammy nominations--Best Pop Vocal Album and Best Female Pop Vocal Performance for "Overprotected"-- and was listed in 2008 as one of Entertainment Weekly's "100 Best Albums from the Past 25 Years". The album's first single, "I'm a Slave 4 U", became a top-ten hit worldwide. Spears's performance of the single at the 2001 MTV Video Music Awards featured a caged tiger and a large albino python draped over her shoulders. It was harshly received by animal rights organization PETA, who claimed the animals were mistreated and scrapped plans for an anti-fur billboard that was to feature Spears. To support the album, Spears embarked on the Dream Within a Dream Tour. The show was critically praised for its technical innovations, the piece de resistance being a water screen that pumped two tons of water into the stage. The tour grossed $43.7 million, becoming the second highest grossing tour of 2002 by a female artist, behind Cher's Farewell Tour. Her career success was highlighted by Forbes in 2002, as Spears was ranked the world's most powerful celebrity. Spears also landed her first starring role in Crossroads, released in February 2002. Although the film was largely panned, critics praised Spears's acting and the film was a box office success. Crossroads, which had a $12 million budget, went on to gross over $61.1 million worldwide. In June 2002, Spears opened her first restaurant, Nyla, in New York City, but terminated her relationship in November, citing mismanagement and "management's failure to keep her fully apprised". In July 2002, Spears announced she would take a six-month break from her career; however, she went back into the studio in November to record her new album. Spears's relationship with Justin Timberlake ended after three years. In December 2002, Timberlake released the song "Cry Me a River" as the second single from his solo debut album. The music video featured a Spears look-alike and fueled the rumors that she had been unfaithful to him. As a response, Spears wrote the ballad "Everytime" with her backing vocalist and friend Annet Artani. The same year, Limp Bizkit frontman Fred Durst said that he was in a relationship with Spears. However, Spears denied Durst's claims. In a 2009 interview, he explained that "I just guess at the time it was taboo for a guy like me to be associated with a gal like her."

what did she do in 2001?
Spears signed a $7-8 million promotional deal with Pepsi, and released another book co-written with her mother, titled A Mother's Gift.