She was from the twentieth crop of foals sired by Be My Guest, an American-bred stallion who won the Waterford Crystal Mile when trained in Ireland by Vincent O'Brien.
Seventeen days later she went off favourite for a similar event at Navan Racecourse but was beaten again, coming home third behind the colts My Chief and Rainbows Forever.
[5] The filly was dropped back to maiden class at the Curragh on 27 June but disappointed as she was beaten more than nine lengths into fourth place in a race won by Fear and Greed.
Starting a 20/1 outsider she overcame interference in the final furlong to finish second of the fourteen runners, beaten one and a quarter lengths by Hula Angel.
On 13 April Valentine Waltz was ridden by Frankie Dettori when she began her second campaign in the Group 3 Nell Gwyn Stakes (a trial race for the 1,000 Guineas) over seven furlongs at Newmarket and started the 7/2 favourites against ten opponents.
Two weeks after her run in the Guineas Valentine Waltz was sent to contest the French equivalent, the Poule d'Essai des Pouliches over 1600 metres at Longchamp Racecourse.
After turning tinto the straight in seventh place, Valentine Waltz produced a strong late run, took the lead inside the last 200 metres, and won by two lengths from the 42/1 outsider Karmifira.