Complex sentence: He also holds the record for the most consecutive weeks at number one, with 24, followed by American singer Miley Cyrus, American singer-songwriter Taylor Swift, and Rihanna with 21 weeks at number one.
Split into simpler sentences: He also holds the record for the most consecutive weeks at number one, with 24. He is followed by American singer Miley Cyrus, American singer-songwriter Taylor Swift, and Rihanna with 21 weeks at number one.