Jack Osbourne Honors Ozzy Osbourne with Black Sabbath Shirt 1 Month After Death: Photo ArticlePure

Jack Osbourne remembered Ozzy Osbourne with a sentimental fashion statement.

The 39-year-old son of the late rocker and Sharon Osbourne paid tribute to his father exactly one month after his death — wearing a T-shirt featuring Ozzy’s band, Black Sabbath, while out and about.

Jack was photographed in the black top, black shorts and gray sneakers while stopping by a Walgreens in Los Angeles on Friday, Aug. 22. Ozzy died at age 76 on July 22.

He accessorized his look with a black baseball hat and a pair of white sunglasses.

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Ozzy’s family — which includes Jack and Sharon, 72, plus Aimee Osbourne and Kelly Osbourne, as well as Jessica Osbourne, Louis Osbourne and Elliot Osbourne — announced his death on July 22, weeks after he performed in Birmingham, England, for Black Sabbath’s final concert.

“It is with more sadness than mere words can convey that we have to report that our beloved Ozzy Osbourne has passed away this morning,” the Osbourne family told PEOPLE in a statement. “He was with his family and surrounded by love. We ask everyone to respect our family privacy at this time.”

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The legendary rock star died of “out-of-hospital cardiac arrest” and “acute myocardial infarction,” with coronary artery disease and Parkinson’s disease with autonomic dysfunction listed as “joint causes,” according to a death certificate obtained by PEOPLE.

Ozzy’s family said their final goodbyes to him during an emotional funeral procession on July 30, which took place in Birmingham, England.

Jack broke his silence on his father’s death weeks later, through an emotional tribute shared on Instagram on Aug. 6.

“I haven’t really wanted to post anything since the passing of my father. My heart has hurt too much,” the father of four’s post began, as he added that he was “gonna keep this short because he certainly hated long rambling speeches.”

“He was so many things to so many people, but I was so lucky and blessed to be apart of a very small group that got to call him ‘Dad.’ My heart is full of so much sadness and sorrow, but also so much love and gratitude,” Jack continued. “I got 14,501 days with that man and I know that is such a blessing.”

Jack’s caption accompanied a video compilation featuring clips and photos of unseen family moments, including Ozzy with Jack’s children, as well as sentimental throwback snapshots.