Goose vs. Phish first time playing MSG since band inception

Phish: • First show: December 2, 1983 • First MSG performance: December 30, 1994 • Days between: 4,040 days

Goose: • First show: June 28, 2014 • First MSG performance: June 28, 2025 • Days between: 4,018 days

So, it took Phish 4,040 days and Goose 4,018 days to play Madison Square Garden since their first show.

Grateful Dead - 5,119

Edit: Headliner and not Soulshine for example.