Big sis, big helper! North West has become the star of her dad Kanye West‘s Sunday Service performances over the past few months, but now she’s making room for a new burgeoning act — her little brother, Saint West. Mama Kim Kardashian took to Twitter on Sunday, June 2, to share a little throwback from the previous week’s service featuring 3-year-old Saint getting a hand from his 5-year-old sister, North. “This was Saint’s first time singing in the choir so North made sure he knew the words,” the 38-year-old captioned the cute video clip. Watch above!