Stephy Tang
On 9 January 2013, Kary Ng held the second show of her second Hong Kong Coliseum concert, "The Present Concert 2013", and during the encore portion, Stephy Tang, Miki Yeung, and Angela Au appeared as surprise guests. They had performed the debut song of Cookies, 「心急人上」. Tang had expressed that she had just returned to Hong Kong the morning of that concert night while Au revealed on-stage that the surprise appearance by the three girls was originally the idea of Ng's mother.