TOP with his friend Go Jaecheon Instagram Updates from 16th December 2014:
Bottom picture is from 25th August 2014.
[Photos] gojc7's Instagram updates with TOP
Source: http://instagram.com/p/wo4HBCRhRV/
Check out BIGBANGUPDATES Article on Go Jaecheon with some background information on their friendship: http://bigbangupdates.com/2008/07/new-singer-speed-motion-talks-t-o-p.html - this article is from 2008.