Garcello: do you know Mecha Sonic and The Chaos Emeralds? (Frostbite but Garcello Sings it)

Story: After their bath, BF and GF take Whitty home to his safe base, and while they go back to the fire, they saw two people dead, and they saw Garcello and try to question him, and garcello tells them about Mecha Sonic and The Chaos Emeralds.