Louis Tomlinson is thinking of his late mom, Johannah Deakin.
On Saturday, which would have been her 44th birthday, the One Direction singer tweeted out a short message.
WATCH: Louis Tomlinson Opens Up About His Mother's Death
"Happy birthday Mum. I love you x," he wrote.
Deakin died last December after being diagnosed with an aggressive form of leukemia earlier in the year.
In January, the 25-year-old performer opened up about his mother's death in an interview with The Insider's Michael Yo, revealing that she had encouraged him not to give up.
"It's not something that I feel 100 percent comfortable talking too much about, but just quickly, when I first found out about the news I kind of did want to throw the towel in," he said at the time.
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"But it was my mum who said to me that I've just got to keep going," he continued. "She told me very sternly that she wanted me to.”
Find out more in the video below.