Singer Miley Cyrus, who has been hospitalised, feels wrecked as her plans to celebrate cannabis culture's 4/20 holiday has gone awry.

​ 4/20 is a date, which has a special meaning for pot smokers due to its link to 4.20 p.m., the time when marijuana lovers like to get high. It is celebrated every year on April 20.

​ The "Wrecking Ball" hitmaker made her marijuana use no secret. Due to her severe allergic reaction to antibiotics, she won't be able to attend this year's festival, reports contactmusic.com.

​ Cyrus took to Twitter: "Boutta (sic) be the wackest 4/20 ever. Happy 420/ Easter! I'll be where I've been the passed week. In bed. Crying. Not stoned. Wackkkk (sic)."

​ The singer's Bangerz Tour dates in the US have been rescheduled for August.