Tomer Hemed's hooked strike denied Newcastle the chance to move fourth in the Premier League as Brighton prevailed 1-0 at the Amex Stadium.
Hemed's second Premier League goal sealed the Seagulls' triumph and manager Chris Hughton's first win over former club Newcastle at the seventh time of asking.
Brighton moved 13th in the table with their second win of the campaign, hitting back after losing at Bournemouth in first the Premier League then the Carabao Cup this past week.
Israel forward Hemed added to his goal in the 3-1 home win over West Brom to tie up three more priceless points for Brighton, finishing smartly from Dale Stephens' tee-up.