Here is the combined Billboard Hot 100 chart history for Ariana Grande and Bruno Mars
Bruno Timemarks:
0:00 — ‘Doo-Wops & Hooligans’ Era
2:29 — ‘Unorthodox Jukebox’ Era
6:41 — ’24K Magic’ Era
10:52 — ‘An Evening With Silk Sonic’ Era
Ariana Timemarks:
2:59 — ‘Yours Truly’ Era
4:08 — ‘My Everything’ Era
6:05 — ‘Dangerous Woman’ Era
8:18 — ‘Sweetener’ Era
8:51 — ‘Thank U, Next’ Era
10:29 — ‘Positions’ Era
Bruno Mars (2010 – 2021)
— 8 #1 hits
— 17 Top 10 hits
— 26 entries
Ariana Grande (2013 – 2021)
— 6 #1 hits
— 19 Top 10 hits
— 70 entries