We Belong Together | Mariah Carey (2005) ★★★★★
while mariah carey continues at no. 1 for an eighth week on the billboard Hot 100, she also moves up to no. 1 on the adult r&b chart with we belong together. it’s carey’s first chart-topper on this list. carey also leads on hot r&b/hip-hop songs, hot r&b/hip-hop airplay, rhythmic top 40, the pop 100, pop 100 airplay and the mainstream top 40 chart, the first song in history to lead all eight charts concurrently. (billboard)

if i remember correctly, mariah’s we belong together lost to carrie underwood’s inside your heaven on billboard hot 100 single for one week then mariah reclaimed her number 1 position! that’s so cool!