Grammar focus on: simple present, imperative
Activity: put the letters into the correct form
Lyrics taken from: http://www.directlyrics.com/rihanna-diamonds-lyrics.html
Linguistic aspects: as a very popular song once said, diamonds are a girl's best friends and here lots of verbs and expressions are related to light, brightness and passion. To start with, diamonds shine, but if you say that a person or thing shines through, it means that he/she or it is really rather noticeable.
As everyone knows, a shooting star is a meteoroid that, after entering the atmosphere, becomes visible and soon vanishes. This is a metaphor that can be also used to describe someone's fortune. When you talk about a TV star, for instance, and you compare him/her to a shooting star, you are expressing a negative comment on the fact that his/her success is doomed to fade away quite soon.
If you see eye to eye with someone, you agree with what he/she is thinking or saying.
Finally, in Rihanna' s song the expression "as we, moonshine and molly" has been widely discussed by many linguists in several forums or sites. Litelly in fact, the word moonshine means in US English not only "an illegal type of alcoholic drink" but also "a silly remark", whereas the word molly is an informal word that stands for the purest form of ecstasy. All in all, I guess that it implies "alcohol and drugs" in the broadest sense.