[2] The song was written by Chris Brown, Felicia Ferraro and Antonio Stith, while its production was handled by Scott Storch and Avedon.

"Undecided" is a midtempo R&B and pop song, with lyrics about Brown reflecting on his hesitation to fully commit to a woman.

[6] The song runs for three minutes and eight seconds, containing a sample of American R&B singer Shanice's 1991 single "I Love Your Smile".

Brown enters the portal and a magical dream sequence unfolds, with the couple riding the roller coaster, playing carnival games, and dancing under an indigo starry sky, decorated with a giant full moon, as the ocean’s waves crash on the shore, before ending the magical dream sequence with a kiss.

[6] HypeBeast stated that in the video "the two showcase their dance moves alongside their respective crews throughout a bright and lively carnival".

[13] Urban Islandz commented that "the fun-filled music video comes with the exact creative energy that Chris Brown is known for".