Today, my little sister showed me a clip of Teen Titans Go, where Raven was watching a show called Pretty Pretty Pegasus, which is a parody of MLP. But this is interesting, because Raven is voiced by Tara Strong, the same voice of Twilight Sparkle (the pony in my avatar) in MLP. My theory is that Tara wanted to include a reference to another show she is known for voice work in, and thus she put in this. Know what's even better? Raven's attitude towards Pretty Pretty Pegasus is like many bronies' attitude towards MLP, even though the other characters ridicule her, just like common people do to bronies. This makes this even more awesome; I feel like Tara even wanted to include a relatable shoutout to bronies who happened to be watching Teen Titans Go.
Lel, it's an OK show. except for Raven who is the biggest badass ever because she's voiced by the voice of Twilight Sparkle