Ah, the first few magical days of an infant’s life. Exhausted, exhilarated parents marvel as their tiny offspring eat, sleep, poop, cry, and—if the parents in question are Beyonce and Jay-Z—break the occasional world record. A credited verse by newborn Blue Ivy Carter in “Glory” makes Babyonce the youngest person ever to appear on a Billboard chart, at all of five days old.

“Wicked-ass little Bey,” Jay-Z murmurs on his new track, a musical love letter to the littlest Carter. “Hard not to spoil you rotten, you look like little me.” And sure enough, the doting new dad takes spoilage to a whole new level. That’s a hell of a first birthday gift, Jigga.

The infant’s cameo doesn’t appear until the final minute of the song, which appears on the R&B/Hip-Hop Songs chart at No. 74 for the week of Jan. 21. Her coos and cries, reportedly recorded just moments after her birth, are laid over a soft, bluesy slow-jam piano riff. She’s clearly got Mom’s pipes, but we’ll have to wait and see whether Blue Ivy inherited the filthy rhyme skills from her old man Hov. [via Vulture]