On Tuesday, April 9, Twitter users are talking about the imminent release of the video for "Heart Attack," the latest single from American singer-songwriter Demi Lovato.

Lovato is causing a buzz among her fans, known as "Lovatics," after hinting at the release of the video. She has been teasing the video over the past few days with a series of short clips, the latest of which was released on April 8 with the caption "'Heart Attack' premieres on 4/9." Her fans are today trending "#HeartAttackMusicVideoTODAY" in anticipation of the video.

The most recent teaser for "Heart Attack" can be found at:



Also on a musical note, Twitter users are talking about a brand new, and as of yet unnamed, boyband, going on a follow spree and pushing "#NewBoybandMASSIVEFollowSpreeNOW" into second position. The band, which goes by the Twitter handle @YourBoyBand, maintains an air of mystery, having first hit Twitter on April 3 with the message "Hi we are Joey, Danny and Ryan. We are a New British Boyband. The peoples Boyband!! YOU NAME US!!!" The group also has a Facebook page, created on April 4, at facebook.com/JoeyDannyAndRyanYourboyband.

The top 10 most talked about topics on Twitter on April 9 at 12:45 pm GMT are:

01. #ProudToBeAFanOf
02. #NewBoybandMASSIVEFollowSpreeNOW
03. #janoskiansworldtour
04. #WHENIWASACARROT
05. José Luis Sampedro
06. #HeartAttackMusicVideoTODAY
07. EgemenBağış TürkiyeyeFransız
08. FARC
09. Colombia
10. China