Simplify the following text for a Grade 8 native English-speaking person.
Original: Since winning the Newcomers section of the Sanremo Music Festival in 1994 , Bocelli has recorded thirteen solo studio albums , of both pop and classical music , two greatest hits albums , and eight complete operas , selling over 70 million copies worldwide .
Simplified: Since 1994 , he has recorded both pop and Classical albums , and has sold over 70 million copies worldwide .