London, November 5 : 'X Factor' supremo Simon Cowell was annoyed when the lyricist he had lined up for Leona Lewis' comeback single took the song to Beyonce.
Cowell wanted 'Bleeding Love' writer Ryan Tedder to write for Leona.
They had agreed that the song 'Halo' would be Leona's.
However, Leona was so busy that she could not record it at the moment.
Ryan kept waiting and got fed up, and finally took the song to Beyonce.
"Simon is miffed about this as he really wanted Halo for Leona. Ryan has proved he's got the magic touch - Bleeding Love was a massive global hit," the Sun quoted an insider as saying.
"But Leona's diary is so rammed it didn't look like she could record it until next year.
"Ryan didn't want to hang around, so he gave it to Beyonce.
"It's a shame, but I'm sure Leona will work with Ryan again. She's got a long career ahead of her," the source added.
A spokeswoman for Sony BMG said: "Unfortunately Leona's schedule didn't enable her to record this track."