[7] Bright Sky began her second season with a step up in class for the Listed Prix Finlande over 1800 metres at Longchamp on 7 April and ran second, beaten three quarters of a length by Turtle Bow.
She then made rapid progress in the straight, producing what was described as a "devastating burst of acceleration"[9] to overtake Turtle Bow 150 metres from the finish and win by two lengths from Dance Routine.
[10][11] After a three-month break Bright Sky was stepped up in distance for the Prix Vermeille over 2400 metres at Longchamp on 15 September and came home third of the eleven runners behind Pearly Shells and Ana Marie.
She was then dropped back in trip for the 2000 metres Prix de l'Opéra at Longchamp on 6 October when she was accompanied by her pacemaker Blue Lightning and started the 0.9/1 favourite in a twelve-runner field.
On her first appearance as a four-year-old Bright Sky started 1.4/1 favourite for the Prix Ganay over 2000 metres at Longchamp on 18 May but despite staying on well in the straight she was beaten a length and a half into second place by Falbrav.
The rest of the twelve-runner field included Musical Chimes (Poule d'Essai des Poulains), Campsie Fells (Prix Vanteaux) and Diacada (Henckel-Rennen).
"[14] At Longchamp on 3 September Bright Sky started 2/1 favourite for the Prix du Moulin and kept on well after being briefly outpaced in the straight to finish third behind Nebraska Tornado and the Japanese challenger Lohengrin.
Three weeks later the filly was sent to California to contest the Breeders' Cup Turf at Santa Anita Park and came home sixth of the eight runners behind the dead heaters High Chaparral and Johar.
Three weeks later she was sent to the United Arab Emirates to contest the Dubai Duty Free Stakes at Nad Al Sheba Racecourse and came home seventh of the eleven runners behind Paolini, beaten two and a half lengths by the German-trained winner.