Travis Barker played the drums to his baby’s heartbeat while in the delivery room with Kourtney Kardashian before the kiddo was born … and folks online are calling it a bit “ick.”

The Blink-182 drummer did what he does best in the clip, shared by the man himself on Thursday … with the caption, “Practicing to my babies [sic] heartbeat.”

While some couldn’t help but point out he’s one of the best drummers in the game, others chimed in with their distaste for the delivery room performance — with one saying Kourtney, who seems to be recording the vid, has to have “angel-like” patience.

Trav’s TikTok prompted comments like, “I would literally be so annoyed I couldn’t do it,” “That would’ve driven me up the wall” and, “Imagine being in the room next to this.”

It wasn’t all bashing, though … plenty of folks simply congratulated Travis and Kourtney on their new baby, calling the music “so beautiful.”

As we reported, Kourtney and Travis left Cedars-Sinai on Tuesday after spending multiple days at the hospital … although it’s still unclear exactly what day their baby, Rocky, was actually born.

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While some newborns might recognize their pop’s voice, we’re guessing Rocky recognized Travis from the tight beat of his drumming!