Washington, July 24 : Teen superstar Miley Cyrus has laughed off speculation that her ex-boyfriend Nick Jonas has given her a commitment ring.

The Hannah Montana star is reported to have reconciled with the youngest Jonas brother earlier this year, after splitting from model Justin Gaston, reports Contactmusic.

Cyrus and Jonas have denied the stories.

However, Internet gossips were sent into a spin earlier this week - when it emerged that Jonas had presented Cyrus with a piece of jewellery to mark their relationship.

Now, Cyrus has taken to her Twitter. com page to dismiss the reports.

She writes, "I woke up this morning and thought I''d check up on the daily gossip and apparently Nick Jonas gave me a 75,000-dollar ring? It''s all true. Ha! Don''t believe anything until I Tweet it. (Unless its good news of course)." (ANI)