INTER MILAN stars partied into the night after winning their 20^th Serie A title against rivals AC Milan.

Marcus Thuram celebrated the occasion with a brutal corner flag gesture after a 2-1 win at the San Siro.

And fans flooded the nearby Piazza del Duomo as Lautaro Martinez joined them for a singalong session at four in the MORNING.

Inter cruised to league glory last night as they wrapped up the title with five games to spare.

Goals from Francesco Acerbi and Thuram ensured Simone Inzaghi’s men took the crown off Napoli.

To make the moment even greater, Inter picked up their title while playing arch-rivals Milan – who were the home team at the San Siro.

And Thuram couldn’t resist celebrating at their expense as he lifted up a corner flag draped in Milan colours.

The France striker was signed on a free transfer from Gladbach last summer and has gone on to score 13 goals.

Thuram removed his shirt as the party on the pitch got underway.

He then stuck it over the Milan symbol on the corner flag.

And Thuram raised the pole above his head in a brutal gesture while jumping up and down.

As the night went on, Inter fans gathered outside Milan’s Duomo Cathedral in the main city square.

They partied into the night as Inter’s players went to their own event nearby.

The stars are sure to have toasted their victory several times over.

And at 4am, captain Martinez made an appearance on a nearby balcony as supporters sang his name with gusto.

The Argentina World Cup winner, who climbed on the goal post earlier on at the San Siro, has 26 goals in all competitions this term.

And after a second Serie A title win in six years, he is now a firm fan favourite.

Left-back Federico Dimarco also came to the balcony at one stage and was given a raucous welcome, having been a key player for Inter this season.