Possible Clues:

• 2017 Luis Fonsi hit
• 2017 hit for Luis Fonsi
• 2017 No. 1 hit for Luis Fonsi
• Reggaeton megahit whose title means "slowly"
• 2017 chart-topping hit whose YouTube video was the first to reach 3 billion views
• 2017 #1 song whose music video has over 6.5 billion views on YouTube