Users can also jump between different chats without the clip pausing or closing, The Independent reports.
The new WhatsApp update also lets users record much longer audio messages than had been possible previously.
However, there are some caveats, like you can not view photo/video while recording a locked voice message.
WhatsApp have said the new update is being rolled out to iOS users first, but expect it to be available on Android in the near future.
Facebook-owned messaging application WhatsApp has been updating its features to facilitate the users and enhance their experience.
This latest update will allow user to play YouTube video in picture-in-picture mode so that they can move from one chat to another while watching the video.
Explaining this feature, WhatsApp notes, "Want to easily record long Voice Messages?" With this feature, you can lock the recording, so that you can leave the record button. The app now supports in-line Youtube playback which means you no longer have to click on a link sent by a friend or in a group in order to watch the content.
Simply "swipe up to lock recording so you can continue to record without keeping your finger down", according to the description laid out. To get these features on your iPhone - you should upgrade your app to the latest version, which is - iOS 2.17.81.
WhatsApp is developing a new feature to permit users to switch from voice to video call rapidly during the voice call. Other features include the addition of sharing the offline YouTube videos, stored in the Android device within either internal or external memories, with friends that are nearby.
The new app enables users to download videos, and focuses on controlling mobile data consumption.