Former contestants tell their co-star to 'have fun' as he gears up for his dancing debut Monday night.
ET caught up with Sweetin and Mitchell, who are back for season two of their 'Pop' series, 'Hollywood Darlings.'
A source told ET that Sweetin celebrated her birthday with her new man last month.
The renewal follows the show's season three cliffhanger.
The 'Fuller House' star experienced a dramatic split from her fiance, Justin Hodak, last year.
ET caught up with Jodie at Hallmark Channel's Television Critics Association red carpet on Saturday, where she also revealed where she'd like to see her surrogacy storyline go on the yet-to-be-ordered fourth season of 'Fuller House.'
The 'Fuller House' star made it her mission to attend the KCAs with her daughter and fiance on Saturday.
