The 25-year-old footballer confessed to undergoing an operation to boost his receding hairline on the social networking site today, sparking an extensive teasing session from the Life Stories host.
He said after discovering Rooney's news: "Just woken up in Hollywood to find Christmas has come early... Did all your hair fall out before or after my friend Lionel [Messi, Barcelona player] scalped you?"
After jokingly suggesting that Rooney should adopt the afro sported by his Manchester United teammate Rio Ferdinand, Morgan stated: "Seriously though @WayneRooney - many congrats on the new head... something had to be done."
However, the CNN star was unable to resist sticking the boot in to Rooney once more after the England team were outperformed by Switzerland in the first half of their Euro 2012 qualifier today.
He teased: "2-0. Bloody hell - you must be tearing your new hair out @WayneRooney."
Morgan has in recent times become infamous for his online spats with Lord Alan Sugar, last clashing with the businessman over ratings for the latest series of The Apprentice.