Geri Halliwell has become engaged to her Formula One boss beau Christian Horner. The former Spice Girl has come over all classy and revealed her impending nuptials in a newspaper advertisement.

Spice Girl Geri Halliwell-Horner and her husband Christian Horner were celebrating after their horse won at Warwick Racecourse on Monday. The couple, who tied the knot in 2015, saw their bay ...