Lose 23kg in 2months.Is it possible?

Im 73kg and the height of 162cm.I want to lose 23kg by 2months time because i will be seeing my ex bf in event.I need to do a makeover so that he will regret breaking up with me,is it possible for me to lose that much in that short period.I'm not only doing this to make regret but also for myself.What kinda workout should i do?