Keri Hilson stated that listening to two of Katy Perry's albums reminded her of the singing lessons she herself used to have as a child.
Katy replied to Keri's derogative remark by enquiring of her if this means she used to be a miracle as a kid and has dramatically deteriorated into the croaking nuisance she is now.
Keri answered that Katy should not try to pitch her whining against Keri's actual singing to avoid embarrassing herself.
In the end, Katy challenged Keri to a singing contest which Keri accepted.
However, the two competitive ladies' arguments became so heated that they also agreed to compete in a wrestling match after which the loser would have to admit the other had the better voice; she would also have to say at the soonest opportunity during a live TV broadcast, 'She has the best voice, I could never compete with her' in order to humble herself and let the winner of the match have the fullest triumph.
KERI HILSON: 31 years, 5'9", 53kg, 32C
KATY PERRY: 29 years, 5'8", 59kg, 32D