President Jacob Zuma turns 75 and former Finance Minster Pravin Gordhan turns 68 on Wednesday.
Both of them celebrate a birthday on 12 April, which also happens to be the declared the Day of National Action by opposition parties.
Presenter Redi Tlhabi encouraged listeners to call in and share their birthday messages and advice for the pair.
Below are some of the messages:
Jacob Zuma must enjoy his birthday to the fullest, because this is the last birthday he is going to have with a good mind... After next year he's gonna be facing charges on his shoulders.— JJ, caller
Happy Birthday to my President, enjoy your special day Msholozi.— Phillip, caller
It's the President's birthday tomorrow, but it's a pity that the country cannot celebrate him as the highest sitting icon. I think he should give back to the country by resigning.— Tumelo, caller
Take a listen: