The couple has done everything they can to imply a romantic relationship, but they have yet to confirm it.
This comes after Master KG called the Limpopo singer his “wife” during a performance last month.
MAKHADZI HAILS MASTER KG HER ‘SOULMATE’
Taking to Instagram to wish Master KG a happy birthday, Makhadzi wrote: “Besides being my soulmate, you are one of the most humble artists I have ever met.
“Happy birthday to you and may god bless you with many years”.
The post was liked by thousands of followers, including from celebrities who heaped praise on the cute couple.
Lerato Kganyago wrote: “Love is so beautiful”, whilst Lady Du added: “I love you guys so much”.
Pearl Thusi referred to the couple as the “new Caiphus and Letta”, referencing the South African music icons.
The star also shared pics and clips from a sensual photoshoot done with Master KG promoting their new music collaboration Kulakwe.
INSIDE MASTER KG’S BIRTHDAY
Meanwhile clips and images from Master KG’s birthday party, hosted by Makhadzi have also been posted on social media.
The Jerusalema hitmaker celebrated his 26th birthday in a party held in Pretoria over the weekend.
One clip shows Makhadzi delivering her usual energetic performance…
Whilst another showed the couple flaunting PDA, by sealing their romance with a kiss…