What topics are trending on Twitter right now? Here are your top 10 Twitter hashtags and the reasons why they are trending.

#NationalCerealDay – 52.9K Tweets

The National Cereal Day is celebrated every year on March 7.

#SaySomethingGoodAboutTwitter – 20.1K Tweets

It is just one of those hashtag games when Twitter fans post anything good they like about Twitter.

Maria Sharapova – 70.1K Tweets

Former tennis world No.1 Maria Sharapova said on Monday that she failed a drug test at the Australian Open due to a substance she has been taking the last 10 years.

Peyton Manning – 240K Tweets

Peyton Manning made a point to tell other people that they should miss him.

VAMOS MB – 410K Tweets

Vine star Mario Bautista from Mexico City celebrated his birthday on March 5.

#iubb – 13.6K Tweets

Indiana closed the regular season in style with an 80-62 win over No. 12 Maryland on Sunday afternoon.

#3DaysTilDangerousWoman – 108K Tweets

Will Ariana Grande release both her upcoming single and album “Dangerous Woman” on March 11?

#InternationalWomensDay – 33K Tweets

Never underestimate the power of a woman.

#mondaymotivation – 128K Tweets

Motivating quotes on a Monday.

Somalia – 31.4K Tweets

A U.S. drone strike in Somalia killed as many as 150 suspected Al Shabaab fighters, the Pentagon said Monday.