Whitney Houston has been released from hospital and has denied speculation that she is back on drugs, saying that she's "feeling great" and that her hospital stay was due to allergies. "I'm just ready to move on and continue my world tour," said Houston, who recently postponed four shows in Europe.

The 46-year-old called reports about her drug relapse "ridiculous" and revealed that she has no plans to respond to or even to read the stories.

Houston plans to resume her tour on April 13 in Birmingham, England.