Girls' Generation isn't the only girl group to be making their first ever appearance on 'Weekly Idol' soon! Star rookie girl group MAMAMOO was revealed to have also been invited onto the set recently.

An agency rep stated on July 29, "MAMAMOO ended up appearing on 'Weekly Idol.' They recorded it yesterday."

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As the members are known for their quirky and lovable personalities, fans are undoubtedly excited to see what ridiculous situations they get themselves into on 'Weekly Idol'!  Keep an eye out for their episode.