Newcastle United won the Sky Bet EFL Championship on the final day of the season as Brighton and Hove Albion conceded in the closing moments at Aston Villa on Sunday.
The Seagulls drew 1-1 after leading in the second half, handing the trophy to the Magpies who defeated Barnsley 3-0.
The play-offs will be contested by Reading, Sheffield Wednesday, Huddersfield Town and Fulham after a frantic final day.
Wigan Athletic and Rotherham United are joined in relegation by Blackburn Rovers, whose victory against Brentford could not save them from the drop.