The pair were joined by other KIIS FM colleagues, including Kyle & Jackie O producer Bruno Bouchet, who announced he was leaving the program earlier this week.
Just days after Jackie O announced her separation from husband Lee Henderson, sources claimed the radio host had "found comfort" in former rugby league star Beau Ryan.
According to insiders, Jackie and Beau have known each other for years but their friendship grew even closer as Jackie’s 15-year marriage began to fall apart.
“Beau makes Jac laugh like no-one else," a source told New Idea.
“They have the same sense of humour and he has been a breath of fresh air for her during this difficult time in her life.”
A spokesperson for Jackie O told New Idea, "Their relationship is strictly professional and any speculation otherwise is completely fabricated and categorically untrue.”