So tonight I couldn't sleep, so I did what I always do when I can't sleep and traveled deep into the Internet. And I found this. I can't currently verify it, so I'm going to go Google this shit right now because WTF and all.

Okay. Update. Wikipedia says this is a thing. Lets see what it says.

"Foreign accent syndrome is a very rare medical condition in which patients develop what appears to be a foreign accent. Foreign accent syndrome usually results from stroke but can also develop from head trauma. However, two cases have been reported of individuals with the condition as a development problem and more than one associated with severe migraine. Between 1941 and 2012 there were sixty-two recorded cases.
Its symptoms result from distorted articulatory planning and coordination processes. It must be emphasized that the speaker does not suddenly gain a foreign language (vocabulary, syntax, grammar, etc.). Despite an unconfirmed news report in 2010 that a Croatian speaker has gained the ability to speak fluent German after emergence from a coma, there has been no verified case where a patient's foreign language skills have improved after a brain injury. There have been a few reported cases of children and siblings picking up the new accent from someone with foreign accent syndrome.
The condition was first described in 1907 by the French neurologist Pierre Marie, and another early case was reported in a Czech study in 1919. Other well-known cases of the syndrome have included one that occurred in Norway in 1941 after a young woman, Astrid L., suffered a head injury from shrapnel during an air-raid. After apparently recovering from the injury, she was left with what sounded like a strong German accent and was shunned by her fellow Norwegians."

If you want more information, here is the link.