Source (Go here for full details): https://www.reddit.com/r/StarlightStage/comments/7pun0y/event_megathread_%E7%BE%8E%E3%81%AB%E5%85%A5%E3%82%8A%E5%BD%A9%E3%82%92%E7%A9%BF%E3%81%A4_jan_2018/

This event lasts until January 18th, 20:59 JST.

This is a token event. By playing normally or Live Party, you will receive tokens based on your song's stamina cost and your Score Rank. Event Points are also received, but at a minimum level. You can also spend twice the amount of stamina to receive twice the amount of tokens. EXP, money, fans, and Event Points are not doubled this way; they stay the same as if you have played the song once.

[Bi ni Iri Sai wo Ugatsu] Kobayakawa Sae
SR
https://i.imgur.com/MXmytVo.jpg
SR+
https://i.imgur.com/FjjROQW.jpg

[Bi ni Iri Sai wo Ugatsu] Shiomi Syuko
SR
https://i.imgur.com/QhyZVAg.jpg
SR+
https://i.imgur.com/Y7RlazT.jpg

https://www.youtube.com/watch?v=oA50TQbdPb4

Source: https://www.reddit.com/r/StarlightStage/comments/7ndmjd/event_megathread_live_groove_visual_burst_happy/

This event lasts until January 9th, 20:59 JST.

In this event, you are to select a difficulty, and the game will randomly generate a medley consisting of three songs. Songs are selected based on which Groove type it is. All-Type songs will also be selected in any of the Groove types. Only the idols with the same type as the chosen Groove get the 30% same-type Appeal bonus even on All-Type songs.

[Happy New Yeah ! ] Shibuya Rin
SR
https://i.imgur.com/Uq433Ba.jpg
SR+
https://i.imgur.com/AkuQofa.jpg

[Happy New Yeah ! ] Sato Shin
SR
https://i.imgur.com/5aeUIPG.jpg
SR+
https://i.imgur.com/qYdJR9c.jpg

https://www.youtube.com/watch?v=ltZdGGGFv7c

A happy new year to all this 2018!

Don't forget about the free daily 10x rolls are available until January 7th to celebrate the new year in Starlight Stage! Good luck!

We hope you all have a wonderful year to look forward to!

Wishing you all a merry Christmas! Stay safe and enjoy the season

More details at: https://www.reddit.com/r/StarlightStage/comments/7kzhiv/event_megathread_fuyuzora_precious_dec_2017/

This event lasts until December 27th, 20:59 JST.

This is a token event. By playing normally or Live Party, you will receive tokens based on your song's stamina cost and your Score Rank. Event Points are also received, but at a minimum level. You can also spend twice the amount of stamina to receive twice the amount of tokens. EXP, money, fans, and Event Points are not doubled this way; they stay the same as if you have played the song once.

REWARD IDOLS

SR
https://i.imgur.com/lrjIs2g.jpg
SR+
https://i.imgur.com/orKB1iy.jpg

SR
https://i.imgur.com/wqzMa9n.jpg
SR+
https://i.imgur.com/jd6d6OJ.jpg

https://www.youtube.com/watch?v=MIQeio1xQdw

Have fun and Merry Christmas!