Question: who has the most number one singles?
Answer: Madonna. Madonna. 4M subscribers. Subscribe. Madonna - Vogue (Official Music Video) ... 
Michael Jackson. michaeljacksonVEVO. 8.2M subscribers. Subscribe. ... 
Rihanna. RihannaVEVO. 25M subscribers. Subscribe. ... 
Mariah Carey. MariahCareyVEVO. 3.1M subscribers. Subscribe. ... 
The Beatles. TheBeatlesVEVO. 1.3M subscribers. Subscribe.