The "Brothers Say Hi 2025 - A Merry Christmas Concert, First Date Ever" kicked off with a brand-new intro, where 30 "brothers" emerged one by one from special "gift boxes," officially greeting the audience. Immediately afterward, all 30 artists simultaneously said "hi" to MC Tran Thanh, energizing the atmosphere of the show.

The concert officially began with the "Chill Guys" from Team 1. Immediately afterwards, B Ray recreated the attention-grabbing "recitation" from the finals with Jaysonlei, introducing the guys from Team 2 and leading into the song "Unique and Unparalleled ." The series continued with "Unborn Lover" performed by OgeNus, BigDaddy, HUSTLANG Robber, Dillan Hoang Phan, and Phuc Du. During the interaction, BigDaddy mimicked Dillan Hoang Phan's voice, creating a fun atmosphere and leading into the next performance.

The song "Chill Guys" opened the concert.

Hermosa – the song that won The Best Group Performance award – performed by Son.K, buitruonglinh, CONGB, Mason Nguyen, and Tez, brought a vibrant atmosphere. Next, "Nỡ lòng đồng ý" (Did You Really Agree?) – a collaboration between B Ray, Karik, Cody Nam Vo, Ryn Lee, and GILL – surprised everyone with a moment where Karik and B Ray sang while driving a car onto the stage. The atmosphere gradually calmed down with "Em đã chờ anh bao lâu" (How Long Have You Been Waiting For Me? ) performed by Phuc Du, OgeNus, Otis, Bui Duy Ngoc, RIO, and 52Hz.