The Talk star Sharon Osbourne is recovering from a Coronavirus infection that left her hospitalised, and has been keeping a fairly low profile on social media as she focuses on a return to full health.But on Tuesday she took to Instagram for a very sad reason - to pay tribute to French designer Pierre Cardin following sad news of his death. WATCH: Sharon talks about her granddaughter contracting CoronavirusMORE: Jack Osbourne breaks silence on daughter Minnie's coronavirus battleMORE: Sharon