Usage of "watashi" in sentences?
Hi! Some of the songs that I listen to that are in Japanese include "watashi" completely after the sentence. For example, in English we usually start sentences with "I" and not end them with "I". Could someone please explain to me why sometimes a sentence in Japanese ends with "watashi"? Thanks for the help! c:

Question

Answer

The reason is usually to emphasize the words in the beginning and/or the end.
This grammatical rule called inversion is often used in songs and even in general conversation.

Here are some simple examples.

あなたのことを思っています、わたし（はいつも）。
(In the regular order, わたしは(いつも)あなたのことを思っています: I'm (always) thinking about you ）
(But the nuance would be like "The one who is thinking about you is……..Me.  (Always)". 
                                           -> This would be more like a song :D)

さみしい、わたし。あなたがいなくて。　
（In the regular order, わたしはあなたがいなくてさみしい（です）: I feel lonely because you are not here.)

つめたい、これ。(これはつめたい(です))
This is cold.

聞きましたか、そのこと？（そのことを聞きましたか？）
Did you hear about that?

Hope it helps.