Table:
text: List of best-selling music artists
80 million to 99 million records
80 million to 99 million records
Artist Country_of_origin Period_active Release_year_of_first_charted_record Genre Claimed_sales
Santana United States 1966–present 1969 Rock 90 million
Gloria Estefan United States 1977–present 1984 Latin / Dance / Pop 90 million
R.E.M. United States 1980–2011 1983 Alternative rock 85 million
Shania Twain Canada 1993–present 1993 Country pop 80 million
B`z Japan 1988–present 1988 Rock / Pop rock / Hard rock 80 million
Van Halen United States 1978–present 1978 Hard rock / Heavy metal 80 million
Lady Gaga United States 2005–present 2008 Pop / Dance / Electronic/ Rock 80 million
Red Hot Chili Peppers United States 1983–present 1987 Funk rock / Alternative rock 80 million

Question: Name the genre of the list of best selling music artists from the release year of the first charted record of 1988 under 80 million to 99 million records?