The Masked Singer viewers were left completely thrown as Robin changed their voice for tonight's performance.
Many fans have become convinced that the singing bird is JLS star Aston Merrygold following the dancing and Soccer Aid references.
But viewers were stumped tonight as Robin showcased his low vocal range - and sounded nothing like the boyband singer.
Fans flocked to Twitter to voice their confusion, with one writing: "Errrrrm guys, have they swapped Aston out the suit? The start of that sounded NOTHING like him #MaskedSingerUK #TheMaskedSingerUK."
While another commented: "#MaskedSingerUK i was certain robin was aston from JLS then he started singing tonight."
Blue star Antony Costa wrote: "Well that’s thrown me ...Robin... @MaskedSingerUK I think it’s Aston merrygold ? #MaskedSingerUK."
"I thought Robin was Ashton Merrygold but this performance has thrown me off #MaskedSingerUK," another commented.
One tweeted: "That deep voice confused me for a second but his voice is back #MaskedSingerUK."
But others were convinced that it was still Aston after the clue that he was known as the "blue one".
One fan shared a photo of the JLS stars Aston seen wearing a blue hoodie and tweeted: "Aston is the blue member of JLS."
*The Masked Singer final airs Saturday 13th February on ITV
