Gintama's ending song from Ep.14 to Ep.24 is "Mr. Raindrop" by Amplified. It is the only theme which is in English.
As you can see, the transliteration above the English words is done in hiragana instead of katakana. Since I can't confidently translate hiragana, I wanted to confirm that was this done intentionally for a joke (if yes, can you please explain it) or it was a careless mistake.