Cruise crooner by night, certified heartthrob by morning — the guy who’s gone viral for his karaoke banger on a cruise tells TMZ he’s riding a whole new wave … ladies flooding his DMs!

20-year-old Tyler Heyworth from Georgia turned his Carnival Cruise into a concert last week, shutting it down with Keith Sweat’s “Nobody” — and judging by the screams from the audience, the ladies were very into it … on and off the ship.

You gotta see the clip — Tyler says the female fanfare’s been next level! Wedding gig requests, flirty DMs, even $10 Cash App love notes … and get this — he hasn’t even checked TikTok yet ‘cause it’s all too much to handle!