Former Topp Dogg member A-Tom confirmed to join Produce 101 Season 2 : r/kpop
A-Tom leaves (?) Topp Dogg to participate in the second season of Produce 101 - Celebrity News & Gossip - OneHallyu
allkpop on Twitter: "A-Tom to leave Topp Dogg and participate in the male version of 'Produce 101' https://t.co/8feI76dCrh https://t.co/GV36CxoGfM" / Twitter
Sanggyun To Leave Xeno-T (Formerly Known As Toppdogg) After JBJ Disbands[[MORE]]On
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Topp Dogg reveal A-Tom's teaser image for 'Open the Door' | allkpop