On Facebook, it didn't take long for Rajinikanth to rack up over 151,000 followers (and counting).
"Welcome to the virtual world Thalaivaaa," commented one excited fan. "Facebook joined Rajinikanth," joked another.
On Instagram, which Rajinikanth joined four days ago, his post accumulated over 46,000 likes and he gained over 71,000 followers.
And, in case you were wondering, no, Thalaivar isn't following anyone himself on Instagram.
Four years ago, Rajinikanth had a blockbuster debut on Twitter.
Salutation to the Lord. Vaakkam aaivarukkum !! A big thank you to all my fans. Excited on this digital journey http://t.co/79ea6MrDe3— Rajinikanth (@superstarrajini) May 5, 2014
On Monday, Rajinikanth made his first public speech after announcing his decision to enter politics. The superstar, speaking to thousands of students at a private university just outside Chennai, said there was a "vacuum" in Tamil Nadu politics that he would fill.
On December 31, the 67-year-old superstar announced he would launch a political party and contest all 234 assembly constituencies in Tamil Nadu in the next elections due in 2021. Rajinikanth has so far refused to confirm whether he will contest the national election in 2019.
His friend and contemporary Kamal Haasan launched his own political party, Makkal Needhi Maiam, last month in Madurai.
Political analysts say both Rajinikanth and Kamal Haasan have timed their political debuts to take advantage of a political vacuum in Tamil Nadu politics following former Chief Minister and AIADMK chief J Jayalalitha's death and DMK boss M Karunanidhi's age and poor health. Click for more trending news
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