FIESTAR's Cao Lu appeared on 'The Outsiders' special of MBC's 'Radio Star' on December 16, where she relayed her envy towards other guests Jackson and Jessi.

Jackson started off with, "The people at the agency tell me to monitor variety shows, so I looked at the comments on the articles, but there were malicious comments. �I asked for advice from Kwanghee."

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Jessi then cut in with, "Did you see my malicious comments? �Those malicious comments about you are nothing. �It's much more severe for me."

Hearing this, Cao Lu then said, "You should count your blessings. �I don't even get comments," making everyone laugh. �"Even malicious ones would be okay," she added. Jessi said, "There will be a lot now that you were on this show." �Definitely! �And probably no malicious ones! She was so adorable on the show.