Complex sentence: This made it his highest-charting single since "Eat It" peaked at number 12 in 1984; it also marked the first time that Yankovic had ever cracked the top ten of the "Billboard" Hot 100.
Split into simpler sentences: This made it his highest-charting single, surpassing "Eat It", which peaked at number 12 in 1984. It also marked the first time that Yankovic had ever cracked the top ten of the "Billboard" Hot 100.