[Watch] Demi Lovato Wows Crowd at World Series For National Anthem Performance

Demi Lovato impressed everyone with her vocal prowess when she sang "The Star-Spangled Banner" for the World Series.

There was nothing but praises for the "Cool For The Summer" singer when she belted the national anthem during the World Series Game 4. Lovato made some pauses before singing the higher notes of the song while the crowd cheered all throughout her performance, Entertainment Weekly reported.

The MLB YouTube channel released her video shortly after her performance, and a number of celebrities praised Lovato for her outstanding rendition. Some of the celebrities who applauded Lovato included Billy Ray Cyrus, Josh Groban and Elvis Duran.

The Game 4 for the World Series between the New York Mets and the Kansas City Royals took place at the Citi Field Stadium over the weekend.

However, prior to her impressive performance, Lovato dropped by "The Tonight Show with Jimmy Fallon" and sang her newest single "Confident." According to Inquisitr, the singer came out wearing a sexy and plunging black velvet tuxedo and sky-high Tom Ford stilettos. Once she sat down, Fallon gushed over her "Saturday Night Live" performance, which had the audience agreeing.

"When you were on Saturday Night Live, it was one of the best performances I've ever seen. You were unbelievably good on there. You just blew up my TV set," Fallon admitted.

She also announced that she will be touring with Nick Jonas for their "Future Now: The Tour" next year. The two are not only close friends but they also started their music label together, Safehouse Records.

"He's one of my best friends and we're business partners, so we thought it was only appropriate that we go on tour together cause we're both killin' it," Lovato said.

The tour is reportedly starting in June and will run until September 17. It will also mark the sixth time that the two friends have toured together. Lovato and Jonas' tour will have 44 dates in major cities like Boston, Brooklyn, Washington, San Diego, Los Angeles and many more.

For fans who want to purchase the tickets early on, selling will start on November 7, but for those who cannot wait until next year to see the two, Lovato and Jonas will be part of the iHeartRadio Jingle Ball series. The two close friends will be on numerous tour stops to perform together. The Jingle Ball series will feature and rotate a lineup of headliners for the show. It will start on December 1 in Dallas, Texas and will end on December 19 in Tampa, Florida.