Pink's daughter is sick with chickenpox.

The 'Just Give Me a Reason' singer is caring for her two-year-old child Willow who has contracted the nasty virus which causes a rash and itchy pockmarks on the skin.

However, Pink has been very impressed by the bravery of her young daughter - her child with husband Carey Hart - who seems untroubled by her illness.

Pink wrote on Twitter: ''My daughter is my hero. i wish i was as cool as her #chickenpox #sowhat (sic)''

The 34-year-old pop star has been unwell herself and has been forced to cancel two US concerts this week in Salt Lake City and Denver.

Pink has been put on ''vocal rest'' and will be back on the road on her 'The Truth About Love Tour' very soon.

She previously posted on Twitter: ''Thanks for all the support y'all. Not very dramatic - doctor just wants me on complete vocal rest for four days to heal. So I can kick ass.

''Both shows rescheduled and very quickly. Touring would be terribly easy if I lip synced. See you soon xo. (sic)''