Rolling Stones Fans, 1978, Philedelphia
Photography by Joseph Szabo
That's actually something I've always found fascinating with their matching tattoos: Louis always has the ones that imply protection. Badly compared, like Louis is Yin (just in the sense of dark) and Harry is Yan (in the sense of light). That's why I found the Rolling Stone review of the 1D concerts so curious because the author said (from observation alone) that Louis would smoulder while Harry would twirl, like they're two opposite magnets who complete and attract each other.