Janet Jackson breaks down on stage during concert

Janet Jackson broke down in tears onstage in Houston on Saturday while singing her heartbreaking abuse track, What About.

The 51-year-old, who recently resumed her tour following the birth of her son Eissa in December, wept and shook with emotion as she struggled to sing the lyrics onstage at the Toyota Centre according to DailyMail.

Janet Jackson performs after the Dubai World Cup at the Meydan Racecourse on March 26, 2016. Photo / Getty

Through tears, the mother-of-one was then heard telling the crowd: 'This is me', after singing words about domestic violence and infidelity, including: 'What about the times you hit my face?'

The track featured on her 1997 album The Velvet Rope.

Janet was overcome with emotion as she belted out the lyrics, which include: 'What about all the s**t you've done to me? / What about the times you hit my face? / What about the times you kept on when I said no more, please?'

Momentarily pausing during the song as her tears began to fall however, the pop star then straightened up and simply told the crowds: 'This is me.'

Janet was also reportedly overwhelmed during the first show of her State of the World tour in Louisiana on Thursday, when she performed the same track.

The pop star has just resumed her tour after welcoming her first child Eissa in January, with estranged husband Wissam Al Mana.

The Scream hitmaker had called off her Unbreakable World Tour in April 2016, in order to have her first child, at the age of 50.

Janet Jackson and Wissam al Mana in 2013. Photo / Getty

The songstress is currently in the process of divorcing the Qatari business magnate following their split in April 2017 after five years of marriage.

MailOnline have contacted representatives of Wissam Al Mana for comment.

Janet previously said her divorce from Wissam was 'in God's hands', in a special video posted to announce her plans to return to live performing.

She told fans in the clip, shared in May: 'I just want to keep it real with you guys for a second. Yes, I separated from my husband, we are in court and the rest is in God's hands.'

However her brother Tito, 63, recently confessed his sister loves being a mother to her eight-month-old son Eissa.